[{"user_id":"31496","volume":65,"publisher":"Springer Science and Business Media LLC","_id":"63246","status":"public","project":[{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"citation":{"bibtex":"@article{Winkler_2025, title={Rough solutions in one-dimensional nonlinear thermoelasticity}, volume={65}, DOI={<a href=\"https://doi.org/10.1007/s00526-025-03170-8\">10.1007/s00526-025-03170-8</a>}, number={11}, journal={Calculus of Variations and Partial Differential Equations}, publisher={Springer Science and Business Media LLC}, author={Winkler, Michael}, year={2025} }","ama":"Winkler M. Rough solutions in one-dimensional nonlinear thermoelasticity. <i>Calculus of Variations and Partial Differential Equations</i>. 2025;65(1). doi:<a href=\"https://doi.org/10.1007/s00526-025-03170-8\">10.1007/s00526-025-03170-8</a>","mla":"Winkler, Michael. “Rough Solutions in One-Dimensional Nonlinear Thermoelasticity.” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 65, no. 1, 1, Springer Science and Business Media LLC, 2025, doi:<a href=\"https://doi.org/10.1007/s00526-025-03170-8\">10.1007/s00526-025-03170-8</a>.","chicago":"Winkler, Michael. “Rough Solutions in One-Dimensional Nonlinear Thermoelasticity.” <i>Calculus of Variations and Partial Differential Equations</i> 65, no. 1 (2025). <a href=\"https://doi.org/10.1007/s00526-025-03170-8\">https://doi.org/10.1007/s00526-025-03170-8</a>.","short":"M. Winkler, Calculus of Variations and Partial Differential Equations 65 (2025).","ieee":"M. Winkler, “Rough solutions in one-dimensional nonlinear thermoelasticity,” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 65, no. 1, Art. no. 1, 2025, doi: <a href=\"https://doi.org/10.1007/s00526-025-03170-8\">10.1007/s00526-025-03170-8</a>.","apa":"Winkler, M. (2025). Rough solutions in one-dimensional nonlinear thermoelasticity. <i>Calculus of Variations and Partial Differential Equations</i>, <i>65</i>(1), Article 1. <a href=\"https://doi.org/10.1007/s00526-025-03170-8\">https://doi.org/10.1007/s00526-025-03170-8</a>"},"doi":"10.1007/s00526-025-03170-8","article_number":"1","language":[{"iso":"eng"}],"date_updated":"2026-04-23T12:18:59Z","publication_status":"published","intvolume":"        65","year":"2025","title":"Rough solutions in one-dimensional nonlinear thermoelasticity","author":[{"first_name":"Michael","last_name":"Winkler","full_name":"Winkler, Michael","id":"31496"}],"publication_identifier":{"issn":["0944-2669","1432-0835"]},"type":"journal_article","date_created":"2025-12-18T19:01:02Z","abstract":[{"text":"<jats:title>Abstract</jats:title>\r\n                  <jats:p>\r\n                    The hyperbolic-parabolic model\r\n                    <jats:disp-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$\\begin{aligned} \\left\\{ \\begin{array}{ll} u_{tt} = u_{xx} - \\big (f(\\Theta )\\big )_x, \\qquad &amp;  x\\in \\Omega , \\ t&gt;0, \\\\ \\Theta _t = \\Theta _{xx} - f(\\Theta ) u_{xt}, \\qquad &amp;  x\\in \\Omega , \\ t&gt;0, \\end{array} \\right. \\end{aligned}$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n                            <mml:mtable>\r\n                              <mml:mtr>\r\n                                <mml:mtd>\r\n                                  <mml:mfenced>\r\n                                    <mml:mrow>\r\n                                      <mml:mtable>\r\n                                        <mml:mtr>\r\n                                          <mml:mtd>\r\n                                            <mml:mrow>\r\n                                              <mml:msub>\r\n                                                <mml:mi>u</mml:mi>\r\n                                                <mml:mrow>\r\n                                                  <mml:mi>tt</mml:mi>\r\n                                                </mml:mrow>\r\n                                              </mml:msub>\r\n                                              <mml:mo>=</mml:mo>\r\n                                              <mml:msub>\r\n                                                <mml:mi>u</mml:mi>\r\n                                                <mml:mrow>\r\n                                                  <mml:mi>xx</mml:mi>\r\n                                                </mml:mrow>\r\n                                              </mml:msub>\r\n                                              <mml:mo>-</mml:mo>\r\n                                              <mml:mrow>\r\n                                                <mml:mo>(</mml:mo>\r\n                                              </mml:mrow>\r\n                                              <mml:mi>f</mml:mi>\r\n                                              <mml:mrow>\r\n                                                <mml:mo>(</mml:mo>\r\n                                                <mml:mi>Θ</mml:mi>\r\n                                                <mml:mo>)</mml:mo>\r\n                                              </mml:mrow>\r\n                                              <mml:msub>\r\n                                                <mml:mrow>\r\n                                                  <mml:mo>)</mml:mo>\r\n                                                </mml:mrow>\r\n                                                <mml:mi>x</mml:mi>\r\n                                              </mml:msub>\r\n                                              <mml:mo>,</mml:mo>\r\n                                              <mml:mspace/>\r\n                                            </mml:mrow>\r\n                                          </mml:mtd>\r\n                                          <mml:mtd>\r\n                                            <mml:mrow>\r\n                                              <mml:mi>x</mml:mi>\r\n                                              <mml:mo>∈</mml:mo>\r\n                                              <mml:mi>Ω</mml:mi>\r\n                                              <mml:mo>,</mml:mo>\r\n                                              <mml:mspace/>\r\n                                              <mml:mi>t</mml:mi>\r\n                                              <mml:mo>&gt;</mml:mo>\r\n                                              <mml:mn>0</mml:mn>\r\n                                              <mml:mo>,</mml:mo>\r\n                                            </mml:mrow>\r\n                                          </mml:mtd>\r\n                                        </mml:mtr>\r\n                                        <mml:mtr>\r\n                                          <mml:mtd>\r\n                                            <mml:mrow>\r\n                                              <mml:mrow/>\r\n                                              <mml:msub>\r\n                                                <mml:mi>Θ</mml:mi>\r\n                                                <mml:mi>t</mml:mi>\r\n                                              </mml:msub>\r\n                                              <mml:mo>=</mml:mo>\r\n                                              <mml:msub>\r\n                                                <mml:mi>Θ</mml:mi>\r\n                                                <mml:mrow>\r\n                                                  <mml:mi>xx</mml:mi>\r\n                                                </mml:mrow>\r\n                                              </mml:msub>\r\n                                              <mml:mo>-</mml:mo>\r\n                                              <mml:mi>f</mml:mi>\r\n                                              <mml:mrow>\r\n                                                <mml:mo>(</mml:mo>\r\n                                                <mml:mi>Θ</mml:mi>\r\n                                                <mml:mo>)</mml:mo>\r\n                                              </mml:mrow>\r\n                                              <mml:msub>\r\n                                                <mml:mi>u</mml:mi>\r\n                                                <mml:mrow>\r\n                                                  <mml:mi>xt</mml:mi>\r\n                                                </mml:mrow>\r\n                                              </mml:msub>\r\n                                              <mml:mo>,</mml:mo>\r\n                                              <mml:mspace/>\r\n                                            </mml:mrow>\r\n                                          </mml:mtd>\r\n                                          <mml:mtd>\r\n                                            <mml:mrow>\r\n                                              <mml:mi>x</mml:mi>\r\n                                              <mml:mo>∈</mml:mo>\r\n                                              <mml:mi>Ω</mml:mi>\r\n                                              <mml:mo>,</mml:mo>\r\n                                              <mml:mspace/>\r\n                                              <mml:mi>t</mml:mi>\r\n                                              <mml:mo>&gt;</mml:mo>\r\n                                              <mml:mn>0</mml:mn>\r\n                                              <mml:mo>,</mml:mo>\r\n                                            </mml:mrow>\r\n                                          </mml:mtd>\r\n                                        </mml:mtr>\r\n                                      </mml:mtable>\r\n                                    </mml:mrow>\r\n                                  </mml:mfenced>\r\n                                </mml:mtd>\r\n                              </mml:mtr>\r\n                            </mml:mtable>\r\n                          </mml:mrow>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:disp-formula>\r\n                    for the evolution of the displacement variable\r\n                    <jats:italic>u</jats:italic>\r\n                    and the temperature\r\n                    <jats:inline-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$\\Theta \\ge 0$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n                            <mml:mi>Θ</mml:mi>\r\n                            <mml:mo>≥</mml:mo>\r\n                            <mml:mn>0</mml:mn>\r\n                          </mml:mrow>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:inline-formula>\r\n                    during thermoelastic interaction in a one-dimensional bounded interval\r\n                    <jats:inline-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$\\Omega $$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mi>Ω</mml:mi>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:inline-formula>\r\n                    is considered. Whereas the literature has provided comprehensive results on global solutions for sufficiently regular initial data\r\n                    <jats:inline-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$(u_0,u_{0t},\\Theta _0)=(u,u_t,\\Theta )|_{t=0}$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n                            <mml:mrow>\r\n                              <mml:mo>(</mml:mo>\r\n                              <mml:msub>\r\n                                <mml:mi>u</mml:mi>\r\n                                <mml:mn>0</mml:mn>\r\n                              </mml:msub>\r\n                              <mml:mo>,</mml:mo>\r\n                              <mml:msub>\r\n                                <mml:mi>u</mml:mi>\r\n                                <mml:mrow>\r\n                                  <mml:mn>0</mml:mn>\r\n                                  <mml:mi>t</mml:mi>\r\n                                </mml:mrow>\r\n                              </mml:msub>\r\n                              <mml:mo>,</mml:mo>\r\n                              <mml:msub>\r\n                                <mml:mi>Θ</mml:mi>\r\n                                <mml:mn>0</mml:mn>\r\n                              </mml:msub>\r\n                              <mml:mo>)</mml:mo>\r\n                            </mml:mrow>\r\n                            <mml:mo>=</mml:mo>\r\n                            <mml:mrow>\r\n                              <mml:mo>(</mml:mo>\r\n                              <mml:mi>u</mml:mi>\r\n                              <mml:mo>,</mml:mo>\r\n                              <mml:msub>\r\n                                <mml:mi>u</mml:mi>\r\n                                <mml:mi>t</mml:mi>\r\n                              </mml:msub>\r\n                              <mml:mo>,</mml:mo>\r\n                              <mml:mi>Θ</mml:mi>\r\n                              <mml:mo>)</mml:mo>\r\n                            </mml:mrow>\r\n                            <mml:msub>\r\n                              <mml:mrow>\r\n                                <mml:mo>|</mml:mo>\r\n                              </mml:mrow>\r\n                              <mml:mrow>\r\n                                <mml:mi>t</mml:mi>\r\n                                <mml:mo>=</mml:mo>\r\n                                <mml:mn>0</mml:mn>\r\n                              </mml:mrow>\r\n                            </mml:msub>\r\n                          </mml:mrow>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:inline-formula>\r\n                    when\r\n                    <jats:inline-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$f\\equiv id$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n                            <mml:mi>f</mml:mi>\r\n                            <mml:mo>≡</mml:mo>\r\n                            <mml:mi>i</mml:mi>\r\n                            <mml:mi>d</mml:mi>\r\n                          </mml:mrow>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:inline-formula>\r\n                    , it seems to have remained open so far how far a solution theory can be built solely on the two fundamental physical principles of energy conservation and entropy nondecrease. The present manuscript addresses this by asserting global existence of weak solutions under assumptions which are energy- and entropy-minimal in the sense of allowing for any initial data\r\n                    <jats:inline-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$u_0\\in W_0^{1,2}(\\Omega )$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n                            <mml:msub>\r\n                              <mml:mi>u</mml:mi>\r\n                              <mml:mn>0</mml:mn>\r\n                            </mml:msub>\r\n                            <mml:mo>∈</mml:mo>\r\n                            <mml:msubsup>\r\n                              <mml:mi>W</mml:mi>\r\n                              <mml:mn>0</mml:mn>\r\n                              <mml:mrow>\r\n                                <mml:mn>1</mml:mn>\r\n                                <mml:mo>,</mml:mo>\r\n                                <mml:mn>2</mml:mn>\r\n                              </mml:mrow>\r\n                            </mml:msubsup>\r\n                            <mml:mrow>\r\n                              <mml:mo>(</mml:mo>\r\n                              <mml:mi>Ω</mml:mi>\r\n                              <mml:mo>)</mml:mo>\r\n                            </mml:mrow>\r\n                          </mml:mrow>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:inline-formula>\r\n                    ,\r\n                    <jats:inline-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$u_{0t} \\in L^2(\\Omega )$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n                            <mml:msub>\r\n                              <mml:mi>u</mml:mi>\r\n                              <mml:mrow>\r\n                                <mml:mn>0</mml:mn>\r\n                                <mml:mi>t</mml:mi>\r\n                              </mml:mrow>\r\n                            </mml:msub>\r\n                            <mml:mo>∈</mml:mo>\r\n                            <mml:msup>\r\n                              <mml:mi>L</mml:mi>\r\n                              <mml:mn>2</mml:mn>\r\n                            </mml:msup>\r\n                            <mml:mrow>\r\n                              <mml:mo>(</mml:mo>\r\n                              <mml:mi>Ω</mml:mi>\r\n                              <mml:mo>)</mml:mo>\r\n                            </mml:mrow>\r\n                          </mml:mrow>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:inline-formula>\r\n                    and\r\n                    <jats:inline-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$0\\le \\Theta _0\\in L^1(\\Omega )$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n                            <mml:mn>0</mml:mn>\r\n                            <mml:mo>≤</mml:mo>\r\n                            <mml:msub>\r\n                              <mml:mi>Θ</mml:mi>\r\n                              <mml:mn>0</mml:mn>\r\n                            </mml:msub>\r\n                            <mml:mo>∈</mml:mo>\r\n                            <mml:msup>\r\n                              <mml:mi>L</mml:mi>\r\n                              <mml:mn>1</mml:mn>\r\n                            </mml:msup>\r\n                            <mml:mrow>\r\n                              <mml:mo>(</mml:mo>\r\n                              <mml:mi>Ω</mml:mi>\r\n                              <mml:mo>)</mml:mo>\r\n                            </mml:mrow>\r\n                          </mml:mrow>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:inline-formula>\r\n                    , and which apply to arbitrary\r\n                    <jats:inline-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$f\\in C^1([0,\\infty ))$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n                            <mml:mi>f</mml:mi>\r\n                            <mml:mo>∈</mml:mo>\r\n                            <mml:msup>\r\n                              <mml:mi>C</mml:mi>\r\n                              <mml:mn>1</mml:mn>\r\n                            </mml:msup>\r\n                            <mml:mrow>\r\n                              <mml:mo>(</mml:mo>\r\n                              <mml:mrow>\r\n                                <mml:mo>[</mml:mo>\r\n                                <mml:mn>0</mml:mn>\r\n                                <mml:mo>,</mml:mo>\r\n                                <mml:mi>∞</mml:mi>\r\n                                <mml:mo>)</mml:mo>\r\n                              </mml:mrow>\r\n                              <mml:mo>)</mml:mo>\r\n                            </mml:mrow>\r\n                          </mml:mrow>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:inline-formula>\r\n                    with\r\n                    <jats:inline-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$f(0)=0$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n                            <mml:mi>f</mml:mi>\r\n                            <mml:mo>(</mml:mo>\r\n                            <mml:mn>0</mml:mn>\r\n                            <mml:mo>)</mml:mo>\r\n                            <mml:mo>=</mml:mo>\r\n                            <mml:mn>0</mml:mn>\r\n                          </mml:mrow>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:inline-formula>\r\n                    and\r\n                    <jats:inline-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$f'&gt;0$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n                            <mml:msup>\r\n                              <mml:mi>f</mml:mi>\r\n                              <mml:mo>′</mml:mo>\r\n                            </mml:msup>\r\n                            <mml:mo>&gt;</mml:mo>\r\n                            <mml:mn>0</mml:mn>\r\n                          </mml:mrow>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:inline-formula>\r\n                    on\r\n                    <jats:inline-formula>\r\n                      <jats:alternatives>\r\n                        <jats:tex-math>$$[0,\\infty )$$</jats:tex-math>\r\n                        <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                          <mml:mrow>\r\n                            <mml:mo>[</mml:mo>\r\n                            <mml:mn>0</mml:mn>\r\n                            <mml:mo>,</mml:mo>\r\n                            <mml:mi>∞</mml:mi>\r\n                            <mml:mo>)</mml:mo>\r\n                          </mml:mrow>\r\n                        </mml:math>\r\n                      </jats:alternatives>\r\n                    </jats:inline-formula>\r\n                    .\r\n                  </jats:p>","lang":"eng"}],"publication":"Calculus of Variations and Partial Differential Equations","issue":"1"},{"citation":{"bibtex":"@article{Ahn_Winkler_2023, title={A critical exponent for blow-up in a two-dimensional chemotaxis-consumption system}, volume={62}, DOI={<a href=\"https://doi.org/10.1007/s00526-023-02523-5\">10.1007/s00526-023-02523-5</a>}, number={6180}, journal={Calculus of Variations and Partial Differential Equations}, publisher={Springer Science and Business Media LLC}, author={Ahn, Jaewook and Winkler, Michael}, year={2023} }","ama":"Ahn J, Winkler M. A critical exponent for blow-up in a two-dimensional chemotaxis-consumption system. <i>Calculus of Variations and Partial Differential Equations</i>. 2023;62(6). doi:<a href=\"https://doi.org/10.1007/s00526-023-02523-5\">10.1007/s00526-023-02523-5</a>","mla":"Ahn, Jaewook, and Michael Winkler. “A Critical Exponent for Blow-up in a Two-Dimensional Chemotaxis-Consumption System.” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 62, no. 6, 180, Springer Science and Business Media LLC, 2023, doi:<a href=\"https://doi.org/10.1007/s00526-023-02523-5\">10.1007/s00526-023-02523-5</a>.","short":"J. Ahn, M. Winkler, Calculus of Variations and Partial Differential Equations 62 (2023).","chicago":"Ahn, Jaewook, and Michael Winkler. “A Critical Exponent for Blow-up in a Two-Dimensional Chemotaxis-Consumption System.” <i>Calculus of Variations and Partial Differential Equations</i> 62, no. 6 (2023). <a href=\"https://doi.org/10.1007/s00526-023-02523-5\">https://doi.org/10.1007/s00526-023-02523-5</a>.","ieee":"J. Ahn and M. Winkler, “A critical exponent for blow-up in a two-dimensional chemotaxis-consumption system,” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 62, no. 6, Art. no. 180, 2023, doi: <a href=\"https://doi.org/10.1007/s00526-023-02523-5\">10.1007/s00526-023-02523-5</a>.","apa":"Ahn, J., &#38; Winkler, M. (2023). A critical exponent for blow-up in a two-dimensional chemotaxis-consumption system. <i>Calculus of Variations and Partial Differential Equations</i>, <i>62</i>(6), Article 180. <a href=\"https://doi.org/10.1007/s00526-023-02523-5\">https://doi.org/10.1007/s00526-023-02523-5</a>"},"volume":62,"user_id":"31496","_id":"53324","publisher":"Springer Science and Business Media LLC","status":"public","keyword":["Applied Mathematics","Analysis"],"type":"journal_article","date_created":"2024-04-07T12:40:02Z","publication":"Calculus of Variations and Partial Differential Equations","issue":"6","doi":"10.1007/s00526-023-02523-5","language":[{"iso":"eng"}],"article_number":"180","intvolume":"        62","date_updated":"2024-04-07T12:40:06Z","publication_status":"published","publication_identifier":{"issn":["0944-2669","1432-0835"]},"author":[{"full_name":"Ahn, Jaewook","last_name":"Ahn","first_name":"Jaewook"},{"first_name":"Michael","last_name":"Winkler","full_name":"Winkler, Michael"}],"title":"A critical exponent for blow-up in a two-dimensional chemotaxis-consumption system","year":"2023"},{"issue":"6","publication":"Calculus of Variations and Partial Differential Equations","citation":{"apa":"Ahn, J., &#38; Winkler, M. (2023). A critical exponent for blow-up in a two-dimensional chemotaxis-consumption system. <i>Calculus of Variations and Partial Differential Equations</i>, <i>62</i>(6), Article 180. <a href=\"https://doi.org/10.1007/s00526-023-02523-5\">https://doi.org/10.1007/s00526-023-02523-5</a>","mla":"Ahn, Jaewook, and Michael Winkler. “A Critical Exponent for Blow-up in a Two-Dimensional Chemotaxis-Consumption System.” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 62, no. 6, 180, Springer Science and Business Media LLC, 2023, doi:<a href=\"https://doi.org/10.1007/s00526-023-02523-5\">10.1007/s00526-023-02523-5</a>.","ieee":"J. Ahn and M. Winkler, “A critical exponent for blow-up in a two-dimensional chemotaxis-consumption system,” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 62, no. 6, Art. no. 180, 2023, doi: <a href=\"https://doi.org/10.1007/s00526-023-02523-5\">10.1007/s00526-023-02523-5</a>.","ama":"Ahn J, Winkler M. A critical exponent for blow-up in a two-dimensional chemotaxis-consumption system. <i>Calculus of Variations and Partial Differential Equations</i>. 2023;62(6). doi:<a href=\"https://doi.org/10.1007/s00526-023-02523-5\">10.1007/s00526-023-02523-5</a>","short":"J. Ahn, M. Winkler, Calculus of Variations and Partial Differential Equations 62 (2023).","chicago":"Ahn, Jaewook, and Michael Winkler. “A Critical Exponent for Blow-up in a Two-Dimensional Chemotaxis-Consumption System.” <i>Calculus of Variations and Partial Differential Equations</i> 62, no. 6 (2023). <a href=\"https://doi.org/10.1007/s00526-023-02523-5\">https://doi.org/10.1007/s00526-023-02523-5</a>.","bibtex":"@article{Ahn_Winkler_2023, title={A critical exponent for blow-up in a two-dimensional chemotaxis-consumption system}, volume={62}, DOI={<a href=\"https://doi.org/10.1007/s00526-023-02523-5\">10.1007/s00526-023-02523-5</a>}, number={6180}, journal={Calculus of Variations and Partial Differential Equations}, publisher={Springer Science and Business Media LLC}, author={Ahn, Jaewook and Winkler, Michael}, year={2023} }"},"date_created":"2025-12-18T19:10:55Z","type":"journal_article","year":"2023","title":"A critical exponent for blow-up in a two-dimensional chemotaxis-consumption system","status":"public","publication_identifier":{"issn":["0944-2669","1432-0835"]},"author":[{"full_name":"Ahn, Jaewook","last_name":"Ahn","first_name":"Jaewook"},{"full_name":"Winkler, Michael","last_name":"Winkler","first_name":"Michael","id":"31496"}],"publication_status":"published","date_updated":"2025-12-18T20:10:21Z","intvolume":"        62","article_number":"180","language":[{"iso":"eng"}],"_id":"63267","publisher":"Springer Science and Business Media LLC","user_id":"31496","doi":"10.1007/s00526-023-02523-5","volume":62},{"date_created":"2022-12-21T09:50:59Z","department":[{"_id":"34"},{"_id":"10"},{"_id":"90"}],"keyword":["Applied Mathematics","Analysis"],"type":"journal_article","publication":"Calculus of Variations and Partial Differential Equations","issue":"3","language":[{"iso":"eng"}],"article_number":"96","doi":"10.1007/s00526-022-02201-y","author":[{"id":"23686","orcid":"0000-0001-9963-0800","first_name":"Tobias","last_name":"Black","full_name":"Black, Tobias"},{"full_name":"Wu, Chunyan","last_name":"Wu","first_name":"Chunyan"}],"publication_identifier":{"issn":["0944-2669","1432-0835"]},"title":"Prescribed signal concentration on the boundary: eventual smoothness in a chemotaxis-Navier–Stokes system with logistic proliferation","year":"2022","intvolume":"        61","date_updated":"2023-07-10T11:37:27Z","publication_status":"published","citation":{"ieee":"T. Black and C. Wu, “Prescribed signal concentration on the boundary: eventual smoothness in a chemotaxis-Navier–Stokes system with logistic proliferation,” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 61, no. 3, Art. no. 96, 2022, doi: <a href=\"https://doi.org/10.1007/s00526-022-02201-y\">10.1007/s00526-022-02201-y</a>.","apa":"Black, T., &#38; Wu, C. (2022). Prescribed signal concentration on the boundary: eventual smoothness in a chemotaxis-Navier–Stokes system with logistic proliferation. <i>Calculus of Variations and Partial Differential Equations</i>, <i>61</i>(3), Article 96. <a href=\"https://doi.org/10.1007/s00526-022-02201-y\">https://doi.org/10.1007/s00526-022-02201-y</a>","short":"T. Black, C. Wu, Calculus of Variations and Partial Differential Equations 61 (2022).","chicago":"Black, Tobias, and Chunyan Wu. “Prescribed Signal Concentration on the Boundary: Eventual Smoothness in a Chemotaxis-Navier–Stokes System with Logistic Proliferation.” <i>Calculus of Variations and Partial Differential Equations</i> 61, no. 3 (2022). <a href=\"https://doi.org/10.1007/s00526-022-02201-y\">https://doi.org/10.1007/s00526-022-02201-y</a>.","mla":"Black, Tobias, and Chunyan Wu. “Prescribed Signal Concentration on the Boundary: Eventual Smoothness in a Chemotaxis-Navier–Stokes System with Logistic Proliferation.” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 61, no. 3, 96, Springer Science and Business Media LLC, 2022, doi:<a href=\"https://doi.org/10.1007/s00526-022-02201-y\">10.1007/s00526-022-02201-y</a>.","bibtex":"@article{Black_Wu_2022, title={Prescribed signal concentration on the boundary: eventual smoothness in a chemotaxis-Navier–Stokes system with logistic proliferation}, volume={61}, DOI={<a href=\"https://doi.org/10.1007/s00526-022-02201-y\">10.1007/s00526-022-02201-y</a>}, number={396}, journal={Calculus of Variations and Partial Differential Equations}, publisher={Springer Science and Business Media LLC}, author={Black, Tobias and Wu, Chunyan}, year={2022} }","ama":"Black T, Wu C. Prescribed signal concentration on the boundary: eventual smoothness in a chemotaxis-Navier–Stokes system with logistic proliferation. <i>Calculus of Variations and Partial Differential Equations</i>. 2022;61(3). doi:<a href=\"https://doi.org/10.1007/s00526-022-02201-y\">10.1007/s00526-022-02201-y</a>"},"publisher":"Springer Science and Business Media LLC","_id":"34677","volume":61,"user_id":"23686","status":"public"},{"doi":"10.1007/s00526-021-02168-2","article_number":"108","language":[{"iso":"eng"}],"date_updated":"2025-12-18T20:04:43Z","publication_status":"published","intvolume":"        61","year":"2022","title":"Stabilization of arbitrary structures in a doubly degenerate reaction-diffusion system modeling bacterial motion on a nutrient-poor agar","publication_identifier":{"issn":["0944-2669","1432-0835"]},"author":[{"full_name":"Winkler, Michael","last_name":"Winkler","first_name":"Michael","id":"31496"}],"type":"journal_article","date_created":"2025-12-18T19:26:32Z","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>A no-flux initial-boundary value problem for the doubly degenrate parabolic system <jats:disp-formula><jats:alternatives><jats:tex-math>$$\\begin{aligned} \\left\\{ \\begin{array}{l} u_t = \\nabla \\cdot \\big ( uv\\nabla u\\big ) + \\ell uv, \\\\ v_t = \\Delta v - uv, \\end{array} \\right. \\qquad \\qquad (\\star ) \\end{aligned}$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:mtable>\r\n                      <mml:mtr>\r\n                        <mml:mtd>\r\n                          <mml:mrow>\r\n                            <mml:mfenced>\r\n                              <mml:mrow>\r\n                                <mml:mtable>\r\n                                  <mml:mtr>\r\n                                    <mml:mtd>\r\n                                      <mml:mrow>\r\n                                        <mml:msub>\r\n                                          <mml:mi>u</mml:mi>\r\n                                          <mml:mi>t</mml:mi>\r\n                                        </mml:msub>\r\n                                        <mml:mo>=</mml:mo>\r\n                                        <mml:mi>∇</mml:mi>\r\n                                        <mml:mo>·</mml:mo>\r\n                                        <mml:mrow>\r\n                                          <mml:mo>(</mml:mo>\r\n                                        </mml:mrow>\r\n                                        <mml:mi>u</mml:mi>\r\n                                        <mml:mi>v</mml:mi>\r\n                                        <mml:mi>∇</mml:mi>\r\n                                        <mml:mi>u</mml:mi>\r\n                                        <mml:mrow>\r\n                                          <mml:mo>)</mml:mo>\r\n                                        </mml:mrow>\r\n                                        <mml:mo>+</mml:mo>\r\n                                        <mml:mi>ℓ</mml:mi>\r\n                                        <mml:mi>u</mml:mi>\r\n                                        <mml:mi>v</mml:mi>\r\n                                        <mml:mo>,</mml:mo>\r\n                                      </mml:mrow>\r\n                                    </mml:mtd>\r\n                                  </mml:mtr>\r\n                                  <mml:mtr>\r\n                                    <mml:mtd>\r\n                                      <mml:mrow>\r\n                                        <mml:mrow/>\r\n                                        <mml:msub>\r\n                                          <mml:mi>v</mml:mi>\r\n                                          <mml:mi>t</mml:mi>\r\n                                        </mml:msub>\r\n                                        <mml:mo>=</mml:mo>\r\n                                        <mml:mi>Δ</mml:mi>\r\n                                        <mml:mi>v</mml:mi>\r\n                                        <mml:mo>-</mml:mo>\r\n                                        <mml:mi>u</mml:mi>\r\n                                        <mml:mi>v</mml:mi>\r\n                                        <mml:mo>,</mml:mo>\r\n                                      </mml:mrow>\r\n                                    </mml:mtd>\r\n                                  </mml:mtr>\r\n                                </mml:mtable>\r\n                              </mml:mrow>\r\n                            </mml:mfenced>\r\n                            <mml:mspace/>\r\n                            <mml:mspace/>\r\n                            <mml:mrow>\r\n                              <mml:mo>(</mml:mo>\r\n                              <mml:mo>⋆</mml:mo>\r\n                              <mml:mo>)</mml:mo>\r\n                            </mml:mrow>\r\n                          </mml:mrow>\r\n                        </mml:mtd>\r\n                      </mml:mtr>\r\n                    </mml:mtable>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:disp-formula>is considered in a smoothly bounded convex domain <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\Omega \\subset \\mathbb {R}^n$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:mi>Ω</mml:mi>\r\n                    <mml:mo>⊂</mml:mo>\r\n                    <mml:msup>\r\n                      <mml:mrow>\r\n                        <mml:mi>R</mml:mi>\r\n                      </mml:mrow>\r\n                      <mml:mi>n</mml:mi>\r\n                    </mml:msup>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula>, with <jats:inline-formula><jats:alternatives><jats:tex-math>$$n\\ge 1$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:mi>n</mml:mi>\r\n                    <mml:mo>≥</mml:mo>\r\n                    <mml:mn>1</mml:mn>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula> and <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\ell \\ge 0$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:mi>ℓ</mml:mi>\r\n                    <mml:mo>≥</mml:mo>\r\n                    <mml:mn>0</mml:mn>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula>. The first of the main results asserts that for nonnegative initial data <jats:inline-formula><jats:alternatives><jats:tex-math>$$(u_0,v_0)\\in (L^\\infty (\\Omega ))^2$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:mrow>\r\n                      <mml:mo>(</mml:mo>\r\n                      <mml:msub>\r\n                        <mml:mi>u</mml:mi>\r\n                        <mml:mn>0</mml:mn>\r\n                      </mml:msub>\r\n                      <mml:mo>,</mml:mo>\r\n                      <mml:msub>\r\n                        <mml:mi>v</mml:mi>\r\n                        <mml:mn>0</mml:mn>\r\n                      </mml:msub>\r\n                      <mml:mo>)</mml:mo>\r\n                    </mml:mrow>\r\n                    <mml:mo>∈</mml:mo>\r\n                    <mml:msup>\r\n                      <mml:mrow>\r\n                        <mml:mo>(</mml:mo>\r\n                        <mml:msup>\r\n                          <mml:mi>L</mml:mi>\r\n                          <mml:mi>∞</mml:mi>\r\n                        </mml:msup>\r\n                        <mml:mrow>\r\n                          <mml:mo>(</mml:mo>\r\n                          <mml:mi>Ω</mml:mi>\r\n                          <mml:mo>)</mml:mo>\r\n                        </mml:mrow>\r\n                        <mml:mo>)</mml:mo>\r\n                      </mml:mrow>\r\n                      <mml:mn>2</mml:mn>\r\n                    </mml:msup>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula> with <jats:inline-formula><jats:alternatives><jats:tex-math>$$u_0\\not \\equiv 0$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:msub>\r\n                      <mml:mi>u</mml:mi>\r\n                      <mml:mn>0</mml:mn>\r\n                    </mml:msub>\r\n                    <mml:mo>≢</mml:mo>\r\n                    <mml:mn>0</mml:mn>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula>, <jats:inline-formula><jats:alternatives><jats:tex-math>$$v_0\\not \\equiv 0$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:msub>\r\n                      <mml:mi>v</mml:mi>\r\n                      <mml:mn>0</mml:mn>\r\n                    </mml:msub>\r\n                    <mml:mo>≢</mml:mo>\r\n                    <mml:mn>0</mml:mn>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula> and <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\sqrt{v_0}\\in W^{1,2}(\\Omega )$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:msqrt>\r\n                      <mml:msub>\r\n                        <mml:mi>v</mml:mi>\r\n                        <mml:mn>0</mml:mn>\r\n                      </mml:msub>\r\n                    </mml:msqrt>\r\n                    <mml:mo>∈</mml:mo>\r\n                    <mml:msup>\r\n                      <mml:mi>W</mml:mi>\r\n                      <mml:mrow>\r\n                        <mml:mn>1</mml:mn>\r\n                        <mml:mo>,</mml:mo>\r\n                        <mml:mn>2</mml:mn>\r\n                      </mml:mrow>\r\n                    </mml:msup>\r\n                    <mml:mrow>\r\n                      <mml:mo>(</mml:mo>\r\n                      <mml:mi>Ω</mml:mi>\r\n                      <mml:mo>)</mml:mo>\r\n                    </mml:mrow>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula>, there exists a global weak solution (<jats:italic>u</jats:italic>, <jats:italic>v</jats:italic>) which, inter alia, belongs to <jats:inline-formula><jats:alternatives><jats:tex-math>$$C^0(\\overline{\\Omega }\\times (0,\\infty )) \\times C^{2,1}(\\overline{\\Omega }\\times (0,\\infty ))$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:msup>\r\n                      <mml:mi>C</mml:mi>\r\n                      <mml:mn>0</mml:mn>\r\n                    </mml:msup>\r\n                    <mml:mrow>\r\n                      <mml:mo>(</mml:mo>\r\n                      <mml:mover>\r\n                        <mml:mi>Ω</mml:mi>\r\n                        <mml:mo>¯</mml:mo>\r\n                      </mml:mover>\r\n                      <mml:mo>×</mml:mo>\r\n                      <mml:mrow>\r\n                        <mml:mo>(</mml:mo>\r\n                        <mml:mn>0</mml:mn>\r\n                        <mml:mo>,</mml:mo>\r\n                        <mml:mi>∞</mml:mi>\r\n                        <mml:mo>)</mml:mo>\r\n                      </mml:mrow>\r\n                      <mml:mo>)</mml:mo>\r\n                    </mml:mrow>\r\n                    <mml:mo>×</mml:mo>\r\n                    <mml:msup>\r\n                      <mml:mi>C</mml:mi>\r\n                      <mml:mrow>\r\n                        <mml:mn>2</mml:mn>\r\n                        <mml:mo>,</mml:mo>\r\n                        <mml:mn>1</mml:mn>\r\n                      </mml:mrow>\r\n                    </mml:msup>\r\n                    <mml:mrow>\r\n                      <mml:mo>(</mml:mo>\r\n                      <mml:mover>\r\n                        <mml:mi>Ω</mml:mi>\r\n                        <mml:mo>¯</mml:mo>\r\n                      </mml:mover>\r\n                      <mml:mo>×</mml:mo>\r\n                      <mml:mrow>\r\n                        <mml:mo>(</mml:mo>\r\n                        <mml:mn>0</mml:mn>\r\n                        <mml:mo>,</mml:mo>\r\n                        <mml:mi>∞</mml:mi>\r\n                        <mml:mo>)</mml:mo>\r\n                      </mml:mrow>\r\n                      <mml:mo>)</mml:mo>\r\n                    </mml:mrow>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula> and satisfies <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\sup _{t&gt;0} \\Vert u(\\cdot ,t)\\Vert _{L^p(\\Omega )}&lt;\\infty $$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:msub>\r\n                      <mml:mo>sup</mml:mo>\r\n                      <mml:mrow>\r\n                        <mml:mi>t</mml:mi>\r\n                        <mml:mo>&gt;</mml:mo>\r\n                        <mml:mn>0</mml:mn>\r\n                      </mml:mrow>\r\n                    </mml:msub>\r\n                    <mml:msub>\r\n                      <mml:mrow>\r\n                        <mml:mo>‖</mml:mo>\r\n                        <mml:mi>u</mml:mi>\r\n                        <mml:mrow>\r\n                          <mml:mo>(</mml:mo>\r\n                          <mml:mo>·</mml:mo>\r\n                          <mml:mo>,</mml:mo>\r\n                          <mml:mi>t</mml:mi>\r\n                          <mml:mo>)</mml:mo>\r\n                        </mml:mrow>\r\n                        <mml:mo>‖</mml:mo>\r\n                      </mml:mrow>\r\n                      <mml:mrow>\r\n                        <mml:msup>\r\n                          <mml:mi>L</mml:mi>\r\n                          <mml:mi>p</mml:mi>\r\n                        </mml:msup>\r\n                        <mml:mrow>\r\n                          <mml:mo>(</mml:mo>\r\n                          <mml:mi>Ω</mml:mi>\r\n                          <mml:mo>)</mml:mo>\r\n                        </mml:mrow>\r\n                      </mml:mrow>\r\n                    </mml:msub>\r\n                    <mml:mo>&lt;</mml:mo>\r\n                    <mml:mi>∞</mml:mi>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula> for all <jats:inline-formula><jats:alternatives><jats:tex-math>$$p\\in [1,p_0)$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:mi>p</mml:mi>\r\n                    <mml:mo>∈</mml:mo>\r\n                    <mml:mo>[</mml:mo>\r\n                    <mml:mn>1</mml:mn>\r\n                    <mml:mo>,</mml:mo>\r\n                    <mml:msub>\r\n                      <mml:mi>p</mml:mi>\r\n                      <mml:mn>0</mml:mn>\r\n                    </mml:msub>\r\n                    <mml:mo>)</mml:mo>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula> with <jats:inline-formula><jats:alternatives><jats:tex-math>$$p_0:=\\frac{n}{(n-2)_+}$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:msub>\r\n                      <mml:mi>p</mml:mi>\r\n                      <mml:mn>0</mml:mn>\r\n                    </mml:msub>\r\n                    <mml:mo>:</mml:mo>\r\n                    <mml:mo>=</mml:mo>\r\n                    <mml:mfrac>\r\n                      <mml:mi>n</mml:mi>\r\n                      <mml:msub>\r\n                        <mml:mrow>\r\n                          <mml:mo>(</mml:mo>\r\n                          <mml:mi>n</mml:mi>\r\n                          <mml:mo>-</mml:mo>\r\n                          <mml:mn>2</mml:mn>\r\n                          <mml:mo>)</mml:mo>\r\n                        </mml:mrow>\r\n                        <mml:mo>+</mml:mo>\r\n                      </mml:msub>\r\n                    </mml:mfrac>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula>. It is next seen that for each of these solutions one can find <jats:inline-formula><jats:alternatives><jats:tex-math>$$u_\\infty \\in \\bigcap _{p\\in [1,p_0)} L^p(\\Omega )$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:msub>\r\n                      <mml:mi>u</mml:mi>\r\n                      <mml:mi>∞</mml:mi>\r\n                    </mml:msub>\r\n                    <mml:mo>∈</mml:mo>\r\n                    <mml:msub>\r\n                      <mml:mo>⋂</mml:mo>\r\n                      <mml:mrow>\r\n                        <mml:mi>p</mml:mi>\r\n                        <mml:mo>∈</mml:mo>\r\n                        <mml:mo>[</mml:mo>\r\n                        <mml:mn>1</mml:mn>\r\n                        <mml:mo>,</mml:mo>\r\n                        <mml:msub>\r\n                          <mml:mi>p</mml:mi>\r\n                          <mml:mn>0</mml:mn>\r\n                        </mml:msub>\r\n                        <mml:mo>)</mml:mo>\r\n                      </mml:mrow>\r\n                    </mml:msub>\r\n                    <mml:msup>\r\n                      <mml:mi>L</mml:mi>\r\n                      <mml:mi>p</mml:mi>\r\n                    </mml:msup>\r\n                    <mml:mrow>\r\n                      <mml:mo>(</mml:mo>\r\n                      <mml:mi>Ω</mml:mi>\r\n                      <mml:mo>)</mml:mo>\r\n                    </mml:mrow>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula> such that, within an appropriate topological setting, <jats:inline-formula><jats:alternatives><jats:tex-math>$$(u(\\cdot ,t),v(\\cdot ,t))$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:mo>(</mml:mo>\r\n                    <mml:mi>u</mml:mi>\r\n                    <mml:mo>(</mml:mo>\r\n                    <mml:mo>·</mml:mo>\r\n                    <mml:mo>,</mml:mo>\r\n                    <mml:mi>t</mml:mi>\r\n                    <mml:mo>)</mml:mo>\r\n                    <mml:mo>,</mml:mo>\r\n                    <mml:mi>v</mml:mi>\r\n                    <mml:mo>(</mml:mo>\r\n                    <mml:mo>·</mml:mo>\r\n                    <mml:mo>,</mml:mo>\r\n                    <mml:mi>t</mml:mi>\r\n                    <mml:mo>)</mml:mo>\r\n                    <mml:mo>)</mml:mo>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula> approaches the equilibrium <jats:inline-formula><jats:alternatives><jats:tex-math>$$(u_\\infty ,0)$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:mo>(</mml:mo>\r\n                    <mml:msub>\r\n                      <mml:mi>u</mml:mi>\r\n                      <mml:mi>∞</mml:mi>\r\n                    </mml:msub>\r\n                    <mml:mo>,</mml:mo>\r\n                    <mml:mn>0</mml:mn>\r\n                    <mml:mo>)</mml:mo>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula> in the large time limit. Finally, in the case <jats:inline-formula><jats:alternatives><jats:tex-math>$$n\\le 5$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:mi>n</mml:mi>\r\n                    <mml:mo>≤</mml:mo>\r\n                    <mml:mn>5</mml:mn>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula> a result ensuring a certain stability property of any member in the uncountably large family of steady states <jats:inline-formula><jats:alternatives><jats:tex-math>$$(u_0,0)$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:mo>(</mml:mo>\r\n                    <mml:msub>\r\n                      <mml:mi>u</mml:mi>\r\n                      <mml:mn>0</mml:mn>\r\n                    </mml:msub>\r\n                    <mml:mo>,</mml:mo>\r\n                    <mml:mn>0</mml:mn>\r\n                    <mml:mo>)</mml:mo>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula>, with arbitrary and suitably regular <jats:inline-formula><jats:alternatives><jats:tex-math>$$u_0:\\Omega \\rightarrow [0,\\infty )$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mrow>\r\n                    <mml:msub>\r\n                      <mml:mi>u</mml:mi>\r\n                      <mml:mn>0</mml:mn>\r\n                    </mml:msub>\r\n                    <mml:mo>:</mml:mo>\r\n                    <mml:mi>Ω</mml:mi>\r\n                    <mml:mo>→</mml:mo>\r\n                    <mml:mrow>\r\n                      <mml:mo>[</mml:mo>\r\n                      <mml:mn>0</mml:mn>\r\n                      <mml:mo>,</mml:mo>\r\n                      <mml:mi>∞</mml:mi>\r\n                      <mml:mo>)</mml:mo>\r\n                    </mml:mrow>\r\n                  </mml:mrow>\r\n                </mml:math></jats:alternatives></jats:inline-formula>, is derived. This provides some rigorous evidence for the appropriateness of (<jats:inline-formula><jats:alternatives><jats:tex-math>$$\\star $$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⋆</mml:mo>\r\n                </mml:math></jats:alternatives></jats:inline-formula>) to model the emergence of a strikingly large variety of stable structures observed in experiments on bacterial motion in nutrient-poor environments. Essential parts of the analysis rely on the use of an apparently novel class of functional inequalities to suitably cope with the doubly degenerate diffusion mechanism in (<jats:inline-formula><jats:alternatives><jats:tex-math>$$\\star $$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n                  <mml:mo>⋆</mml:mo>\r\n                </mml:math></jats:alternatives></jats:inline-formula>).</jats:p>"}],"issue":"3","publication":"Calculus of Variations and Partial Differential Equations","user_id":"31496","volume":61,"_id":"63305","publisher":"Springer Science and Business Media LLC","status":"public","citation":{"apa":"Winkler, M. (2022). Stabilization of arbitrary structures in a doubly degenerate reaction-diffusion system modeling bacterial motion on a nutrient-poor agar. <i>Calculus of Variations and Partial Differential Equations</i>, <i>61</i>(3), Article 108. <a href=\"https://doi.org/10.1007/s00526-021-02168-2\">https://doi.org/10.1007/s00526-021-02168-2</a>","ieee":"M. Winkler, “Stabilization of arbitrary structures in a doubly degenerate reaction-diffusion system modeling bacterial motion on a nutrient-poor agar,” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 61, no. 3, Art. no. 108, 2022, doi: <a href=\"https://doi.org/10.1007/s00526-021-02168-2\">10.1007/s00526-021-02168-2</a>.","short":"M. Winkler, Calculus of Variations and Partial Differential Equations 61 (2022).","chicago":"Winkler, Michael. “Stabilization of Arbitrary Structures in a Doubly Degenerate Reaction-Diffusion System Modeling Bacterial Motion on a Nutrient-Poor Agar.” <i>Calculus of Variations and Partial Differential Equations</i> 61, no. 3 (2022). <a href=\"https://doi.org/10.1007/s00526-021-02168-2\">https://doi.org/10.1007/s00526-021-02168-2</a>.","mla":"Winkler, Michael. “Stabilization of Arbitrary Structures in a Doubly Degenerate Reaction-Diffusion System Modeling Bacterial Motion on a Nutrient-Poor Agar.” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 61, no. 3, 108, Springer Science and Business Media LLC, 2022, doi:<a href=\"https://doi.org/10.1007/s00526-021-02168-2\">10.1007/s00526-021-02168-2</a>.","ama":"Winkler M. Stabilization of arbitrary structures in a doubly degenerate reaction-diffusion system modeling bacterial motion on a nutrient-poor agar. <i>Calculus of Variations and Partial Differential Equations</i>. 2022;61(3). doi:<a href=\"https://doi.org/10.1007/s00526-021-02168-2\">10.1007/s00526-021-02168-2</a>","bibtex":"@article{Winkler_2022, title={Stabilization of arbitrary structures in a doubly degenerate reaction-diffusion system modeling bacterial motion on a nutrient-poor agar}, volume={61}, DOI={<a href=\"https://doi.org/10.1007/s00526-021-02168-2\">10.1007/s00526-021-02168-2</a>}, number={3108}, journal={Calculus of Variations and Partial Differential Equations}, publisher={Springer Science and Business Media LLC}, author={Winkler, Michael}, year={2022} }"}},{"year":"2019","status":"public","title":"The fast signal diffusion limit in Keller–Segel(-fluid) systems","publication_identifier":{"issn":["0944-2669","1432-0835"]},"author":[{"full_name":"Wang, Yulan","last_name":"Wang","first_name":"Yulan"},{"first_name":"Michael","last_name":"Winkler","full_name":"Winkler, Michael","id":"31496"},{"first_name":"Zhaoyin","last_name":"Xiang","full_name":"Xiang, Zhaoyin"}],"date_updated":"2025-12-19T10:57:05Z","publication_status":"published","intvolume":"        58","article_number":"196","language":[{"iso":"eng"}],"_id":"63359","publisher":"Springer Science and Business Media LLC","doi":"10.1007/s00526-019-1656-3","user_id":"31496","volume":58,"publication":"Calculus of Variations and Partial Differential Equations","issue":"6","citation":{"ieee":"Y. Wang, M. Winkler, and Z. Xiang, “The fast signal diffusion limit in Keller–Segel(-fluid) systems,” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 58, no. 6, Art. no. 196, 2019, doi: <a href=\"https://doi.org/10.1007/s00526-019-1656-3\">10.1007/s00526-019-1656-3</a>.","apa":"Wang, Y., Winkler, M., &#38; Xiang, Z. (2019). The fast signal diffusion limit in Keller–Segel(-fluid) systems. <i>Calculus of Variations and Partial Differential Equations</i>, <i>58</i>(6), Article 196. <a href=\"https://doi.org/10.1007/s00526-019-1656-3\">https://doi.org/10.1007/s00526-019-1656-3</a>","chicago":"Wang, Yulan, Michael Winkler, and Zhaoyin Xiang. “The Fast Signal Diffusion Limit in Keller–Segel(-Fluid) Systems.” <i>Calculus of Variations and Partial Differential Equations</i> 58, no. 6 (2019). <a href=\"https://doi.org/10.1007/s00526-019-1656-3\">https://doi.org/10.1007/s00526-019-1656-3</a>.","short":"Y. Wang, M. Winkler, Z. Xiang, Calculus of Variations and Partial Differential Equations 58 (2019).","mla":"Wang, Yulan, et al. “The Fast Signal Diffusion Limit in Keller–Segel(-Fluid) Systems.” <i>Calculus of Variations and Partial Differential Equations</i>, vol. 58, no. 6, 196, Springer Science and Business Media LLC, 2019, doi:<a href=\"https://doi.org/10.1007/s00526-019-1656-3\">10.1007/s00526-019-1656-3</a>.","bibtex":"@article{Wang_Winkler_Xiang_2019, title={The fast signal diffusion limit in Keller–Segel(-fluid) systems}, volume={58}, DOI={<a href=\"https://doi.org/10.1007/s00526-019-1656-3\">10.1007/s00526-019-1656-3</a>}, number={6196}, journal={Calculus of Variations and Partial Differential Equations}, publisher={Springer Science and Business Media LLC}, author={Wang, Yulan and Winkler, Michael and Xiang, Zhaoyin}, year={2019} }","ama":"Wang Y, Winkler M, Xiang Z. The fast signal diffusion limit in Keller–Segel(-fluid) systems. <i>Calculus of Variations and Partial Differential Equations</i>. 2019;58(6). doi:<a href=\"https://doi.org/10.1007/s00526-019-1656-3\">10.1007/s00526-019-1656-3</a>"},"date_created":"2025-12-19T10:56:58Z","type":"journal_article"}]
