@inbook{59261, author = {{Magerkohl, Sebastian and Magyar, Balázs}}, booktitle = {{Innovative Produktentwicklung durch additive Fertigung}}, editor = {{Lachmayer, Roland and Oel, Marcus and Kaierle, Stefan}}, isbn = {{9783662693261}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{The Role or Rule of the Development Methodology for Additive Manufacturing}}}, doi = {{10.1007/978-3-662-69327-8}}, year = {{2025}}, } @inbook{63613, author = {{Marchetti, Andreas}}, booktitle = {{Jahrbuch der Europäischen Integration 2025}}, isbn = {{9783748950950}}, publisher = {{Nomos Verlagsgesellschaft mbH & Co. KG}}, title = {{{Europa der Kommunen}}}, doi = {{10.5771/9783748950950-163}}, year = {{2025}}, } @article{63612, author = {{Albers, Timm and Meusel, Sarah}}, journal = {{KIWI-Journal }}, pages = {{12--19}}, title = {{{Kommunikation mit Familien im Kontext von Inklusion. Grundlagen der Zusammenarbeit mit Eltern von Kindern mit Behinderung}}}, volume = {{23}}, year = {{2025}}, } @inbook{63018, author = {{Mombeck, Mona Maria and Caruso, Carina}}, booktitle = {{Diskurse und Praktiken der Heterogenität. Pädagogisches Handeln in heterogenen Settings. Mit einem Fokus auf die Elementar- und Primarbildung}}, editor = {{Güneşli, Habib and Albers , Timm and Mombeck , Mona Maria and Jesuthasan , Jonitta}}, pages = {{211--224}}, publisher = {{Beltz Juventa }}, title = {{{Soziales Lernen in der Grundschule - ein Praxisprojekt zur Entwicklung des PET - Paderborner Entwicklungstraining für Mensch und Tier. Ein Training zur Unterstützung der individuellen Entwicklung aller Beteiligten.}}}, doi = {{10.3262/978-3-7799-8995-0}}, year = {{2025}}, } @inproceedings{63622, author = {{Garnelo Abellanas, Irene}}, booktitle = {{Proceedings of the Fourteenth Congress of the European Society for Research in Mathematics Education (CERME14)}}, title = {{{Towards design principles for learning environments based on theorem provers}}}, year = {{2025}}, } @article{63624, title = {{{CQD-SHAP: Explainable Complex Query Answering via Shapley Values}}}, doi = {{10.48550/ARXIV.2510.15623}}, year = {{2025}}, } @inproceedings{63629, author = {{Garnelo Abellanas, Irene}}, booktitle = {{Beiträge zum Mathematikunterricht 2025}}, title = {{{Ein Designprinzip für Lernumgebungen zu inter-aktiven Theorembeweisern}}}, year = {{2025}}, } @inproceedings{61505, author = {{Yigitbas, Enes and Kröker, Leon}}, booktitle = {{Proceedings of the 17th International Conference on Ubiquitous Computing and Ambient Intelligence (UCAmI 2025)}}, publisher = {{Springer}}, title = {{{Bridging the Reality-Virtuality Gap: Evaluating Attention Markers in a Cross-Reality Application for Improved User Coordination}}}, year = {{2025}}, } @inproceedings{61503, author = {{Yigitbas, Enes and Agha, Ali Amin}}, booktitle = {{Proceedings of the 17th International Conference on Ubiquitous Computing and Ambient Intelligence (UCAmI 2025) }}, publisher = {{Springer}}, title = {{{Gamification and Physiological Feedback: A Novel Approach to Reducing Glossophobia in Virtual Reality Environments}}}, year = {{2025}}, } @techreport{63633, author = {{Eimer, Theresa and Schäpermeier, Lennart and Biedenkapp, André and Tornede, Alexander and Kotthoff, Lars and Leyman, Pieter and Feurer, Matthias and Eggensperger, Katharina and Maile, Kaitlin and Tornede, Tanja and Kozak, Anna and Xue, Ke and Wever, Marcel Dominik and Baratchi, Mitra and Pulatov, Damir and Trautmann, Heike and Kashgarani, Haniye and Lindauer, Marius}}, title = {{{Best Practices For Empirical Meta-Algorithmic Research: Guidelines from the COSEAL Research Network}}}, doi = {{DOI:10.48550/arXiv.2512.16491}}, year = {{2025}}, } @inproceedings{61506, author = {{Karakaya, Kadiray and Klauke, Jonas and Yigitbas, Enes}}, booktitle = {{Proceedings of the 3rd International Workshop on Virtual and Augmented Reality Software Engineering (VARSE) @ ASE 2025 }}, title = {{{Toward Static Analysis of Immersive Attacks}}}, year = {{2025}}, } @inproceedings{59836, author = {{Krois, Sebastian and Scharke, Kevin and Yigitbas, Enes and Oevel, Gudrun}}, booktitle = {{10th International Symposium on End-User Development (IS-EUD 2025) }}, title = {{{A VR End-User Development Toolbox for Media Study Students - An Initial Experience Report}}}, year = {{2025}}, } @inbook{62763, author = {{Sloane, Hannah Sabrina and Heidebrecht, Jana and Jenert, Tobias}}, booktitle = {{Prototyp Zukunft: Lösungen für transformative Lehre im Modus des Scholarship}}, editor = {{van Treeck, Timo and Sczcyrba, Birgit and Hochmuth, Reinhard and Schaper, Niclas and Heuchemer, Sylvia}}, title = {{{Fachsensible wissenschaftliche Begleitung}}}, doi = {{10.57684/COS-1314}}, year = {{2025}}, } @inproceedings{47534, abstract = {{In this proceeding we consider a translation invariant Nelson type model in two spatial dimensions modeling a scalar relativistic particle in interaction with a massive radiation field. As is well-known, the corresponding Hamiltonian can be defined with the help of an energy renormalization. First, we review a Feynman-Kac formula for the semigroup generated by this Hamiltonian proven by the authors in a recent preprint (where several matter particles and exterior potentials are treated as well). After that, we employ a few technical key relations and estimates obtained in our preprint to present an otherwise self-contained derivation of new Feynman-Kac formulas for the fiber Hamiltonians attached to fixed total momenta of the translation invariant system. We conclude by inferring an alternative derivation of the Feynman-Kac formula for the full translation invariant Hamiltonian.}}, author = {{Hinrichs, Benjamin and Matte, Oliver}}, booktitle = {{Proceedings of the 2023 RIMS Workshop 'Mathematical Aspects of Quantum Fields and Related Topics'}}, editor = {{Hiroshima, Fumio}}, number = {{3}}, title = {{{Feynman-Kac formula for fiber Hamiltonians in the relativistic Nelson model in two spatial dimensions}}}, volume = {{2310}}, year = {{2025}}, } @unpublished{63642, abstract = {{We prove absence of ground states in the infrared-divergent spin boson model at large coupling. Our key argument reduces the proof to verifying long range order in the dual one-dimensional continuum Ising model, i.e., to showing that the respective two point function is lower bounded by a strictly positive constant. We can then use known results from percolation theory to establish long range order at large coupling. Combined with the known existence of ground states at small coupling, our result proves that the spin boson model undergoes a phase transition with respect to the coupling strength. We also present an expansion for the vacuum overlap of the spin boson ground state in terms of the Ising $n$-point functions, which implies that the phase transition is unique, i.e., that there is a critical coupling constant below which a ground state exists and above which none can exist.}}, author = {{Betz, Volker and Hinrichs, Benjamin and Kraft, Mino Nicola and Polzer, Steffen}}, booktitle = {{arXiv:2501.19362}}, title = {{{On the Ising Phase Transition in the Infrared-Divergent Spin Boson Model}}}, year = {{2025}}, } @unpublished{63644, abstract = {{We study the ultraviolet problem for models of a finite-dimensional quantum mechanical system linearly coupled to a bosonic quantum field, such as the (many-)spin boson model or its rotating-wave approximation. If the state change of the system upon emission or absorption of a boson is either given by a normal matrix or by a 2-nilpotent one, which is the case for the previously named examples, we prove an optimal renormalization result. We complement it, by proving the norm resolvent convergence of appropriately regularized models to the renormalized one. Our method consists of a dressing transformation argument in the normal case and an appropriate interior boundary condition for the 2-nilpotent case.}}, author = {{Hinrichs, Benjamin and Lampart, Jonas and Valentín Martín, Javier}}, booktitle = {{arXiv:2502.04876}}, title = {{{Ultraviolet Renormalization of Spin Boson Models I. Normal and 2-Nilpotent Interactions}}}, year = {{2025}}, } @unpublished{63643, abstract = {{In this short communication we discuss the ultraviolet renormalization of the van Hove-Miyatake scalar field, generated by any distributional source. An abstract algebraic approach, based on the study of a special class of ground states of the van Hove-Miyatake dynamical map is compared with an Hamiltonian renormalization that makes use of a non-unitary dressing transformation. The two approaches are proved to yield equivalent results.}}, author = {{Falconi, Marco and Hinrichs, Benjamin}}, booktitle = {{arXiv:2505.19977}}, title = {{{Ultraviolet Renormalization of the van Hove-Miyatake Model: an Algebraic and Hamiltonian Approach}}}, year = {{2025}}, } @unpublished{63645, abstract = {{In this paper we construct the non-trivial, renormalized Hamiltonian for a class of spin-boson models with supercritical form factors, including the one describing the Weisskopf-Wigner spontaneous emission. The renormalization is performed through both a self-energy and mass renormalization, in the so-called Hamiltonian formalism of constructive quantum field theory, implemented by a non-unitary dressing transformation. This solves the problem of triviality for unitarily-renormalized supercritical spin-boson models.}}, author = {{Falconi, Marco and Hinrichs, Benjamin and Valentín Martín, Javier}}, booktitle = {{arXiv:2508.00805}}, title = {{{Non-Trivial Renormalization of Spin-Boson Models with Supercritical Form Factors}}}, year = {{2025}}, } @unpublished{63646, abstract = {{We study the behavior of a probability measure near the bottom of its support in terms of time averaged quotients of its Laplace transform. We discuss how our results are connected to both rank-one perturbation theory as well as renewal theory. We further apply our results in order to derive criteria for the existence and non-existence of ground states for a finite dimensional quantum system coupled to a bosonic field.}}, author = {{Hinrichs, Benjamin and Polzer, Steffen}}, booktitle = {{arXiv:2511.02867}}, title = {{{Wiener-Type Theorems for the Laplace Transform. With Applications to Ground State Problems}}}, year = {{2025}}, } @unpublished{63647, abstract = {{We study the convergence rate of translation-invariant discrete-time quantum dynamics on a one-dimensional lattice. We prove that the cumulative distributions function of the ballistically scaled position $\mathbb X(n)/{n}$ after $n$ steps converges at a rate of $n^{-1/3}$ in the Lévy metric as $n\to\infty$. In the special case of step-coin quantum walks with two-dimensional coin space, we recover the same convergence rate for the supremum distance and prove optimality.}}, author = {{Hinrichs, Benjamin and Mittenbühler, Pascal}}, booktitle = {{arXiv:2511.13409}}, title = {{{On the Optimal Rate of Convergence for Translation-Invariant 1D Quantum Walks}}}, year = {{2025}}, }