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T. Richthammer and M. Fiedler, “A lower bound on the displacement of particles in 2D Gibbsian particle systems,”https://doi.org/10.1016/j.spa.2020.10.003__Stochastic Processes and their Applications, vol. 132, pp. 1–32, 2021, doi:https://doi.org/10.1016/j.spa.2020.10.003 .
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M. Hanusch, “Symmetries of analytic curves,”10.1016/j.difgeo.2020.101687__Differential Geometry and its Applications, vol. 74, Art. no. 101687, 2021, doi:10.1016/j.difgeo.2020.101687 .
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D. Frischemeier, S. Podworny, and R. Biehler, “Integration fachwissenschaftlicher und fachdidaktischer Komponenten in der Lehramtsausbildung Mathematik Grundschule am Beispiel einer Veranstaltung zur Leitidee eDaten, Häufigkeit und Wahrscheinlichkeit“,” in Konzepte und Studien Lehrinnovationen in der Hochschulmathematik . Konzepte und Studien zur Hochschuldidaktik und Lehrerbildung Mathematikzur Hochschuldidaktik und Lehrerbildung Mathematik, R. Biehler, A. Eichler, R. Hochmuth, S. Rach, and N. Schaper, Eds. Berlin, Heidelberg: Springer Spektrum, 2021, pp. 2273249.
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S. Rach and M. Liebendörfer, “Die Bedeutung affektiver Merkmale beim Mathematiklernen,” in Beiträge zum Mathematikunterricht 2021 vom GDM-Monat 2021 der Gesellschaft für Didaktik der Mathematik (GDM) (1.-25. März 2021), K. Hein, C. Heil, S. Ruwisch, and S. Prediger, Eds. Münster: WTM-Verlag für wissenschaftliche Texte und Medien, 2021, pp. 247–248.
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S. Büchele, M. Liebendörfer, and E. Lankeit, “Increasing the effect of a remedial mathematics course by switching to an online format during the COVID-19 crisis: evidence from a German university,”10.1093/teamat/hrab013__Teaching Mathematics and its Applications: An International Journal of the IMA, vol. 40, no. 4, pp. 478–496, 2021, doi:10.1093/teamat/hrab013 .
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L. Gildehaus, R. Göller, and M. Liebendörfer, “Gymnasiales Lehramt Mathematik studieren – eine Übersicht zur Studienorganisation in Deutschland,” Mitteilungen der Gesellschaft für Didaktik der Mathematik, vol. 47, no. 111, pp. 27–32, 2021.
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B. Vajen, L. Gildehaus, M. Liebendörfer, and C. Wolf, “Mathematisierung als Herausforderung für die politische Bildung,” in Schriftenreihe der DVPB. Standortbestimmung Politische Bildung: Gesellschaftspolitische Herausforderungen, Zivilgesellschaft und das vermeintliche Neutralitätsgebot, 2021, pp. 188–200.
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R. Göller, L. Gildehaus, M. Liebendörfer, and J. Steuding, “Prüfungsformate als Ansatzpunkt gendersensibler universitärer Lehre im Fach Mathematik,” in Mathematik und Gender: Berichte und Beiträge des Arbeitskreise Frauen und Mathematik, vol. 5, A. Blunck and R. Motzer, Eds. Franzbecker, 2021, pp. 59–76.
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I. Haak, L. Gildehaus, and M. Liebendörfer, “Genese und Funktionen von Lerngruppen in der Studieneingangsphase,” in Naturwissenschaftlicher Unterricht und Lehrerbildung im Umbruch?, 2021, pp. 89–92.
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L. Kempen and M. Liebendörfer, “University students’ fully digital study of mathematics: an identification of student-groups via their resources usage and a characterization by personal and affective characteristics,”10.1093/teamat/hrab020__Teaching Mathematics and its Applications: An International Journal of the IMA, vol. 40, no. 4, pp. 436–454, 2021, doi:10.1093/teamat/hrab020 .
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M. Liebendörfer, R. Hochmuth, J. Rode, and S. Schukajlow, “The Mathematical Beliefs and Interest Development of Pre-Service Primary Teachers,” in Interim Proceedings of the 44th Conference of the International Group for the Psychology of Mathematics Education, 2021, vol. 3, pp. 198–205.
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R. Krapf and M. Liebendörfer, “Was bewirkt die Pflichtabgabe von Übungsaufgaben in der Hochschulmathematik? – Ein empirischer Vergleich,” mathematica didactica, vol. 2, no. 44, pp. 1–17, 2021.
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M. Winkler, “Global weak solutions in a three-dimensional Keller-Segel-Navier-Stokes system with gradient-dependent flux limitation.,” Nonlinear Analysis: Real World Applications, vol. 59, Art. no. 103257, 2021.
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M. Winkler, “Suppressing blow-up by gradient-dependent flux limitation in a planar Keller-Segel-Navier-Stokes system.,” Zeitschrift für Angewandte Mathematik und Physik, vol. 72, Art. no. 72, 2021.
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M. Winkler, “Can rotational fluxes impede the tendency toward spatial homogeneity in nutrient taxis (-Stokes) systems?,” International Mathematics Research Notices, vol. 2021, pp. 8106–8152, 2021.
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M. Winkler, “Boundedness in a three-dimensional Keller-Segel-Stokes system with subcritical sensitivity.,” Applied Mathematics Letters, vol. 112, p. 106785, 2021.
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M. Winkler, “Does spatial homogeneity ultimately prevail in nutrient taxis systems? A paradigm for structure support by rapid diffusion decay in an autonomous parabolic flow.,” Transactions of the American Mathematical Society, vol. 374, pp. 219–268, 2021.
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M. Rösler and M. Voit, “Positive intertwiners for Bessel functions of type B,”10.1090/proc/15312__Proceedings of the American Mathematical Society, vol. 149, no. 3, pp. 1151–1163, 2021, doi:10.1090/proc/15312 .
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Y. Tao and M. Winkler, “A fully cross-diffusive two-component evolution system: Existence and qualitative analysis via entropy-consistent thin-film-type approximation.,” Journal of Functional Analysis, vol. 281, Art. no. 109069, 2021.
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Y. Tao and M. Winkler, “The dampening role of large repulsive convection in a chemotaxis system modeling tumor angiogenesis.,” Nonlinear Analysis, Theory, Methods and Applications, vol. 208, Art. no. 112324, 2021.
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Y. Wang, M. Winkler, and Z. Xiang, “Immediate regularization of measure-type population densities in a two-dimensional chemotaxis system with signal consumption.,” Science China Mathematics, vol. 64, pp. 725–746, 2021.
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M. Ding and M. Winkler, “Small-density solutiions in Keller-Segel systems involving rapidly decaying diffusivities.,” Nonlinear Differential Equatiions and Applicatiions, vol. 28, Art. no. 47, 2021.
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Y. Tao and M. Winkler, “Global smooth solutions in a two-dimensional cross-diffusion system modeling propagation of urban crime.,” Communications in Mathematical Sciences, vol. 19, pp. 829–849, 2021.
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Y. Tao and M. Winkler, “Taxis-driven formation of singular hotspots in a May-Nowak type model for virus infection.,” SIAM Journal on Mathematical Analysis, vol. 53, pp. 1411–1433, 2021.
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Y. Wang, M. Winkler, and Z. Xiang, “Local energy estimates and global solvability in a  threee-dimensional chemotaxis-fluid system with prescribed signal on the boundary.,” Communications in Partial Differential Equations, vol. 46, pp. 1058–1091, 2021.
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Y. Wang, M. Winkler, and Z. Xiang, “Global solvability in a threee-dimensional Keller-Segel.Stokes system involving arbitrary superlinear logistic degradation,” Advances in Nonlinear Analysis, vol. 10, pp. 707–731, 2021.
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Y. Tao and M. Winkler, “Critical mass for infinite-time blow-up in a haptotaxis system with nonlinear zero-order interaction,” Discrete and Continuous Dynamical Systems, vol. 41, no. A, pp. 439–454, 2021.
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J. Klüners and T. Komatsu, “Imaginary multiquadratic number fields with class group of exponent $ and $,”10.1090/mcom/3609__Mathematics of Computation, vol. 90, no. 329, pp. 1483–1497, 2021, doi:10.1090/mcom/3609 .
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M. Kirschmer, F. Narbonne, C. Ritzenthaler, and D. Robert, “Spanning the isogeny class of a power of an elliptic curve,”10.1090/mcom/3672__Mathematics of Computation, vol. 91, no. 333, pp. 401–449, 2021, doi:10.1090/mcom/3672 .
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I. Burban and R. Abedin, “Algebraic geometry of Lie bialgebras defined by solutions of the classical Yang-Baxter equation,”10.1007/s00220-021-04188-7__Communications in Mathematical Physics, vol. 387, no. 2, pp. 1051–1109, 2021, doi:10.1007/s00220-021-04188-7 .
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J. Bruns, H. Gasteiger, and C. Strahl, “Conceptualising and measuring domain-specific content knowledge of early childhood educators: A systematic review,”10.1002/rev3.3255__Review of Education, vol. 9, no. 2, pp. 500–538, 2021, doi:10.1002/rev3.3255 .
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J. Bruns and T. Schopferer, “Eine mustergültige Wissenschaft,” . TPS – Theorie und Praxis der Sozialpädagogik, vol. 11, pp. 28–32, 2021.
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S. Jensen, H. Gasteiger, and J. Bruns, “Place value and regrouping as seperate constructs of place value understanding,” in Proceedings of the 44th Conference of the International Group for the Psychology of Mathematics Education, Khon Kaen, Thailand, 2021, vol. 3, pp. 101–109.
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J. Bruns, H. Gasteiger, and C. Strahl, “Context and Implications Document for: Conceptualising and measuring domain-specific content knowledge of early childhood educators: A systematic review,”10.1002/rev3.3256__Review of Education, vol. 9, no. 2, pp. 539–540, 2021, doi:10.1002/rev3.3256 .
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S. Jensen, H. Gasteiger, and J. Bruns, “Stellenwertverständnis: Verständnis von Stellenwertprinzip und Bündelungsprinzip als separate Konstrukte,”http://dx.doi.org/10.17877/DE290R-22292__in Beiträge zum Mathematikunterricht 2021, Lüneburg, 2021, doi:http://dx.doi.org/10.17877/DE290R-22292 .
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J. Schönherr, S. Schukajlow, J. Blomberg, and C. Leopold, “The role of strategy-based motivation in mathematical problem solving: The case of learner-generated drawings,”10.1016/j.learninstruc.2021.101561__Learning and Instruction, vol. 80, Art. no. 101561, 2021, doi:10.1016/j.learninstruc.2021.101561 .
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T. Black, M. Fuest, and J. Lankeit, “Relaxed parameter conditions for chemotactic collapse in logistic-type parabolic–elliptic Keller–Segel systems,”10.1007/s00033-021-01524-8__Zeitschrift für angewandte Mathematik und Physik, vol. 72, no. 3, Art. no. 96, 2021, doi:10.1007/s00033-021-01524-8 .
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T. Black and C. Wu, “Prescribed signal concentration on the boundary: Weak solvability in a chemotaxis-Stokes system with proliferation,”10.1007/s00033-021-01565-z__Zeitschrift für angewandte Mathematik und Physik, vol. 72, no. 4, Art. no. 135, 2021, doi:10.1007/s00033-021-01565-z .
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J. Dröse, S. Prediger, P. Neugebauer, R. D. Danhier, and B. Mertins, “Investigating students’ processes of noticing and interpreting syntactic language features in word problem solving through eye-tracking,”doi.org/10.29333/iejme/9674n __International Electronic Journal of Mathematics Education, 16(1), em0625, 2021, doi:doi.org/10.29333/iejme/9674n  .
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J. Dröse and S. Prediger, “Identifying obstacles is not enough for everybody – Differential efficacy of an intervention fostering fifth graders’ comprehension for word problems,”doi.org/10.1016/j.stueduc.2020.100953__Studies in Educational Evaluation, 68 (100953), pp. 1–15, 2021, doi:doi.org/10.1016/j.stueduc.2020.100953 .
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U. Häsel-Weide, S. Seitz, M. Wallner, Y. Wilke, and L. Heckmann, “Mit Aufgaben im inklusiven Mathematikunterricht professionell umgehen - Erkenntnisse einer Interviewstudie mit Lehrpersonen der Sekundarstufe,”10.21248/qfi.57__QfI - Qualifizierung für Inklusion. Online-Zeitschrift zur Forschung über Aus-, Fort- und Weiterbildung pädagogischer Fachkräfte, vol. 3, no. 1, 2021, doi:10.21248/qfi.57 .
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M. Hattermann, U. Häsel-Weide, and M. Wallner, “Conceptualiziation processes of 6th graders for rotational symmetry,” in Proceedings of the 44th Conference of the International Group for the Psychology of Mathematics Education , 2021, vol. 3, pp. 9–15.
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C. Offen and S. Ober-Blöbaum, “Bifurcation preserving discretisations of optimal control problems,”https://doi.org/10.1016/j.ifacol.2021.11.099__vol. 54(19). pp. 334–339, 2021, doi:https://doi.org/10.1016/j.ifacol.2021.11.099 .
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S. Ridderbusch, C. Offen, S. Ober-Blöbaum, and P. Goulart, “Learning ODE Models with Qualitative Structure Using Gaussian Processes ,”10.1109/CDC45484.2021.9683426__in 2021 60th IEEE Conference on Decision and Control (CDC), Austin, TX, USA, 2021, p. 2896, doi:10.1109/CDC45484.2021.9683426 .
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N. Vertovec, S. Ober-Blöbaum, and K. Margellos, “Multi-objective minimum time optimal control for low-thrust trajectory design,” Rotterdam, the Netherlands, pp. 1975–1980.
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F. Jiménez and S. Ober-Blöbaum, “Fractional Damping Through Restricted Calculus of Variations,” in Nichtlineare Sci 31, 2021, vol. 46.
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J. Bruns, E. Unterhauser, and H. Gasteiger, “Geometrisches Begriffsverständnis in der Grundschule am Beispiel der Begriffe Viereck, Rechteck und Quadrat,”10.1007/s13138-021-00185-4__Journal für Mathematik-Didaktik, vol. 42, no. 2, pp. 581–623, 2021, doi:10.1007/s13138-021-00185-4 .
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