@article{64913, author = {{Gundlach, Fabian and Seguin, Beranger Fabrice}}, issn = {{0021-8693}}, journal = {{Journal of Algebra}}, publisher = {{Elsevier BV}}, title = {{{On matrices commuting with their Frobenius}}}, doi = {{10.1016/j.jalgebra.2026.02.025}}, year = {{2026}}, } @article{64916, abstract = {{The joining of dissimilar materials, such as steel and aluminum, entails significant challenges during thermal curing processes due to differing coefficients of thermal expansion. This study addresses the formation of “viscous fingering” instabilities in structural adhesive joints, which are induced by thermally driven relative displacements during the liquid phase of the adhesive. Using a component-like specimen “bridge specimen,” the dependency of this phenomenon on process temperature and structural stiffness (rivet distance) was characterized. Experimental results reveal that while the relative displacement scales cubically with the free buckling length, the resulting adhesive area reduction follows an exponential trend, leading to a loss of effective bond area of up to 79%, which significantly compromises the joint strength in automotive applications. To predict these process-induced defects, a thermo-chemo-viscoelastic-viscoplastic adhesive model implemented in LS-DYNA was applied. The model combines curing kinetics, viscoelastic relaxation, and pressure-dependent plasticity and features a geometric damage parameter (D) that captures the adhesive area reduction caused by viscous fingering as an exponential function of the accumulated normal strain in the liquid phase. This damage parameter, calibrated on base-specimen level, was transferred to the component geometry. The simulation demonstrated high predictive accuracy with a maximum deviation of the adhesive area reduction of 3.1% compared to experimental data. This validates the model’s capability to predict manufacturing-induced damage in complex hybrid structures solely based on thermal boundary conditions.}}, author = {{Al Trjman, Mohamad and Beule, Felix and Teutenberg, Dominik and Meschut, Gerson and Riese, Julia}}, issn = {{0021-8464}}, journal = {{The Journal of Adhesion}}, keywords = {{Adhesive area reduction, CED coating process, delta alpha problem, epoxy structural adhesive, influence of manufacture, multi-material design, numerical simulation (FEM), relative displacements, viscous fingering (saffman-taylor-instability).}}, pages = {{1--24}}, publisher = {{Informa UK Limited}}, title = {{{Experimental characterization and numerical analysis of the influence of the CED coating process on viscous fingering formation in hybrid-jointed mixed structures}}}, doi = {{10.1080/00218464.2026.2644394}}, year = {{2026}}, } @inbook{64945, author = {{Mersch, Katharina Ulrike}}, booktitle = {{Konfessionen auf dem Prüfstand. Vom Nutzen und Nachteil eines Konzepts für die Vormoderne}}, editor = {{Badea, Andreea and Boute, Bruno and Emich, Birgit}}, title = {{{Religiöse Bewegungen, Häresien oder Konfessionen? Überlegungen zum analytischen Nutzen des Konfessionsbegriffs für das westliche Mittelalter}}}, volume = {{8}}, year = {{2026}}, } @article{64944, author = {{Mersch, Katharina Ulrike}}, journal = {{Mittelalter. Interdisziplinäre Forschung und Rezeptionsgeschichte, Beihefte}}, title = {{{‚The truth explodes‘. Excommunicates facing their opponents‘ false testimony and concealment}}}, year = {{2026}}, } @inbook{64946, author = {{Mersch, Katharina Ulrike}}, booktitle = {{Vor dem Bauernkrieg. Leitmotive spätmittelalterlicher Protestbewegungen bis 1525. Tagungsband des 4. internationalen Symposions, UNESCO Welterbe Kloster Lorsch, 26. bis 28. Oktober 2023}}, editor = {{Mauntel, Christoph and Roth, Thomas and Schenk, Gerrit Jasper}}, title = {{{Messianisch, antiklerikal, protoreformatorisch? Gewalt gegen Kleriker und Kirchen in Tumulten des 14. Jahrhunderts}}}, year = {{2026}}, } @inbook{64948, author = {{Mersch, Katharina Ulrike}}, booktitle = {{Die Absicht der anderen. Zur sozialen Wirksamkeit von Intentionszuschreibungen im europäischen Mittelalter}}, editor = {{de Boer, Jan-Hendryk and Bubert, Marcel}}, title = {{{Gut gemeint ist nicht immer gut gemacht? Beweggründe von Menschenmengen bei der Verfolgung von Häretikern}}}, year = {{2026}}, } @inbook{64950, author = {{Mersch, Katharina Ulrike and Bruhn, Stephan}}, booktitle = {{Die Absicht der anderen. Zur sozialen Wirksamkeit von Intentionszuschreibungen im europäischen Mittelalter}}, editor = {{de Boer, Jan-Hendryk and Bubert, Marcel}}, title = {{{Was Frauen (nicht) wollen – misogyne Perspektiven auf Konflikte um Klosterreformen}}}, year = {{2026}}, } @inbook{64949, author = {{Mersch, Katharina Ulrike}}, booktitle = {{Die Absicht der anderen. Zur sozialen Wirksamkeit von Intentionszuschreibungen im europäischen Mittelalter}}, editor = {{de Boer, Jan-Hendryk and Bubert, Marcel}}, title = {{{Absichten in Gerichtsprozessen}}}, year = {{2026}}, } @article{64947, author = {{Mersch, Katharina Ulrike}}, journal = {{Annalen des historischen Vereins für den Niederrhein}}, title = {{{K)ein zweiter Becket. Der kanonische Prozess um die Tötung Engelberts von Berg}}}, volume = {{228}}, year = {{2026}}, } @article{64979, abstract = {{We investigate homogeneous coupled cell systems with high-dimensional internal dynamics. In many studies on network dynamics, the analysis is restricted to networks with one-dimensional internal dynamics. Here, we show how symmetry explains the relation between dynamical behavior of systems with one-dimensional internal dynamics and with higher dimensional internal dynamics, when the underlying network topology is the same. Fundamental networks of homogeneous coupled cell systems (B. Rink, J. Sanders. Coupled Cell Networks and Their Hidden Symmetries. SIAM J. Math. Anal. 46.2 (2014)) can be expressed in terms of monoid representations, which uniquely decompose into indecomposable subrepresentations. In the high-dimensional internal dynamics case, these subrepresentations are isomorphic to multiple copies of those one computes in the one-dimensional internal dynamics case. This has interesting implications for possible center subspaces in bifurcation analysis. We describe the effect on steady state and Hopf bifurcations in l-parameter families of network vector fields. The main results in that regard are that (1) generic one-parameter steady state bifurcations are qualitatively independent of the dimension of the internal dynamics and that, (2) in order to observe all generic l-parameter bifurcations that may occur for internal dynamics of any dimension, the internal dynamics has to be at least l-dimensional for steady state bifurcations and 2l-dimensional for Hopf bifurcations. Furthermore, we illustrate how additional structure in the network can be exploited to obtain even greater understanding of bifurcation scenarios in the high-dimensional case beyond qualitative statements about the collective dynamics. One-parameter steady state bifurcations in feedforward networks exhibit an unusual amplification in the asymptotic growth rates of individual cells, when these are one-dimensional (S. von der Gracht, E. Nijholt, B. Rink. Amplified steady state bifurcations in feedforward networks. Nonlinearity 35.4 (2022)). As another main result, we prove that (3) the same cells exhibit this amplifying effect with the same growth rates when the internal dynamics is high-dimensional.}}, author = {{von der Gracht, Sören and Nijholt, Eddie and Rink, Bob}}, issn = {{0960-0779}}, journal = {{Chaos, Solitons & Fractals}}, keywords = {{Coupled cell systems, Network dynamics, Dimension reduction, Bifurcation theory, Symmetry, Monoid representation theory}}, publisher = {{Elsevier BV}}, title = {{{Homogeneous coupled cell systems with high-dimensional internal dynamics}}}, doi = {{10.1016/j.chaos.2026.118196}}, volume = {{208}}, year = {{2026}}, } @article{64978, abstract = {{The degrees of freedom (DoFs) of light determine the maximum number of independent signal channels an optical system can support. However, the polarization DoF is intrinsically limited to two by orthogonality, which causes unavoidable crosstalk and often forces position multiplexing, where different channels are assigned to distinct spatial locations to suppress crosstalk. This research introduces a multilayer synchronous polarization projection method that fundamentally increases the DoF for polarization multiplexing. The DoF equals twice the number of projection layers. We experimentally demonstrate six- channel polarization multiplexing holography without position multiplexing. The six-channel multiplexing results indicate that our approach exceeds the conventional polarization multiplexing method, yielding an average 3.79 dB improvement in extinction ratio across the six channels. Compared with the theoretical limit of traditional polarization multiplexing, our method reduces crosstalk by an average of 6.52 dB across all channels in a seven-channel design. The polarization projection method breaks the DoF limitation of polarization multiplexing, opening a path toward high-dimensional photonic information encoding for communication, encryption, and imaging.}}, author = {{Jin, Xiao and Zentgraf, Thomas}}, issn = {{2577-5421}}, journal = {{Advanced Photonics}}, number = {{02}}, publisher = {{SPIE-Intl Soc Optical Eng}}, title = {{{Increasing the design degree of freedom for polarization through multilayer synchronous polarization projection}}}, doi = {{10.1117/1.ap.8.2.026010}}, volume = {{8}}, year = {{2026}}, } @article{64985, abstract = {{Modern industrial development has necessitated a wide range of joining technologies. Self-pierce riveting has become a prevalent technique for sheet metal assembly, especially in automotive applications. Achieving proper joint geometry and adequate load-bearing capacity depends on appropriate tool selection and precise process control. Material properties and condition also play a significant role in process performance. To accommodate the inevitable variations in component characteristics during production, a robust and stable joining process is essential. The study focuses on investigating the influence of preformed joining partners on the joining process and the joint's load capacity. An EN AW-6014 in T4 condition, as well as an HCT590X, are used as materials for this study. For this purpose, an exemplary process chain consisting of the steps of performing, joining, and shear load testing is studied. Each process step is implemented using an FE model to predict the outcome of subsequent steps. For analysis of the influence of pre-strain, an optimisation software is used to plan and execute variations of the process. These variations are used to create a meta-model that can describe the relationships between pre-forming and characteristic parameters of subsequent process steps. The resulting model is validated by comparing simulation and experimental data. Finally, in a novel approach, the robustness of the presented process chain is analyzed in terms of a tolerable performance level for the joining partners.}}, author = {{Ludwig, Jean-Patrick and Tolke, Emil and Schlichter, Malte Christian and Bobbert, Mathias and Meschut, Gerson}}, issn = {{2666-3309}}, journal = {{Journal of Advanced Joining Processes}}, keywords = {{Self-pierce riveting, FE modelling, Plastic pre-deformation, Meta modelling}}, publisher = {{Elsevier BV}}, title = {{{Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners}}}, doi = {{10.1016/j.jajp.2026.100391}}, volume = {{13}}, year = {{2026}}, } @article{64982, author = {{Lingnau, Kai and Theile-Rasche, Chantal and Vissing, Klaus and Moritzer, Elmar and Grundmeier, Guido and Wiesing, Martin}}, issn = {{02578972}}, journal = {{Surface and Coatings Technology}}, keywords = {{Plasmabeschichtung, Spritzgießen, Spritzgießwerkzeug, Trennschicht, ultraTrenn, Werkzeugbeschichtung}}, pages = {{133280}}, title = {{{Mechanisms of deposit formation in injection moulding cavities and the role of tool coatings and internal release agents}}}, doi = {{10.1016/j.surfcoat.2026.133280}}, volume = {{524}}, year = {{2026}}, } @inbook{64837, author = {{Jacke, Christoph}}, booktitle = {{Bored Teenabgers . Ein Punk-Mixtape.}}, editor = {{Engelmann, Jonas}}, isbn = {{978-3-95575-258-3}}, pages = {{99--101}}, publisher = {{Ventil Verlag}}, title = {{{Swell Maps: Full Moon in My Pocket/BLAM!!/Full Moon Reprise. Vollmond auf dem kleingroßstädtischen Musikkneipenboden}}}, year = {{2026}}, } @misc{65010, author = {{Landgräber, Jan and Schöppner, Volker and Brüning, Florian}}, booktitle = {{Kunststoffe}}, number = {{01}}, pages = {{22 -- 25}}, title = {{{Der Einzug als Schlüssel zum Erfolg: Untersuchung des Einzugsverhaltens bei Spritzgießaggregaten}}}, year = {{2026}}, } @unpublished{65017, abstract = {{Static Application Security Testing (SAST) tools play a vital role in modern software development by automatically detecting potential vulnerabilities in source code. However, their effectiveness is often limited by a high rate of false positives, which wastes developer's effort and undermines trust in automated analysis. This work presents a Graph Convolutional Network (GCN) model designed to predict SAST reports as true and false positive. The model leverages Code Property Graphs (CPGs) constructed from static analysis results to capture both, structural and semantic relationships within code. Trained on the CamBenchCAP dataset, the model achieved an accuracy of 100% on the test set using an 80/20 train-test split. Evaluation on the CryptoAPI-Bench benchmark further demonstrated the model's practical applicability, reaching an overall accuracy of up to 96.6%. A detailed qualitative inspection revealed that many cases marked as misclassifications corresponded to genuine security weaknesses, indicating that the model effectively reflects conservative, security-aware reasoning. Identified limitations include incomplete control-flow representation due to missing interprocedural connections. Future work will focus on integrating call graphs, applying graph explainability techniques, and extending training data across multiple SAST tools to improve generalization and interpretability.}}, author = {{Ohlmer, Tom and Schlichtig, Michael and Bodden, Eric}}, booktitle = {{arXiv:2603.10558}}, title = {{{FP-Predictor - False Positive Prediction for Static Analysis Reports}}}, year = {{2026}}, } @techreport{65021, abstract = {{Several early music projects, such as the Stanford Josquin Project, have demonstrated the potential for attaining valuable new musicological insights using a corpus-based approach. However, the available musical corpora tend to be relatively small and exhibit considerable variation in encoding practices. Aspiring corpus researchers are confronted with a lack of suitable data, which needs to be addressed before they can embark on their proper research. The EarlyMuse Short Term Scientific Mission CORSICA has surveyed the current state of corpus creation and digital editing in early music. Based on this information, it has developed a vision for the future of corpus building in this field, which aims to speed up the production of digital encodings while respecting the autonomy of the encoders and acknowledging their efforts. This is important because much high-quality encoding is carried out outside the field of professional musicology, and engaging citizen scientists could help address the current shortage of research data. The CORSICA team‘s vision is informed not only by a study of the available data, standards and technologies, but also by Human-Computer Interaction, placing human goals and values before the creation of technology and work processes. The core of the vision is that successful corpus creation must be an inclusive endeavour in terms of both technology and human participation. The report concludes with an implementation plan outlining the initial steps required to realise the vision.}}, author = {{Wiering, Frans and Bergwall, Erik and van Berchum, Marnix and Goebl, Werner and Van Kranenburg, Peter and Lewis, David and Plaksin, Anna Viktoria Katrin and Rodríguez-García, Esperanza and Smith, David J. and Visscher, Mirjam and Weigl, David M.}}, keywords = {{citizen science, crowdsourcing, digital editions of music, early music, human computer interaction, music corpora, music encoding, musicology}}, title = {{{Making Corpus Creation in Early Music Rewarding and Effective: Finding the Optimum Between Standardisation and Autonomy}}}, doi = {{10.5281/zenodo.18413961}}, year = {{2026}}, } @inproceedings{64797, author = {{Birk, Lisa and Loth, Gerrit and Jotzo, Luca and Binder, Karin and Frischemeier, Daniel}}, booktitle = {{Proceedings of the IASE 2025 Satellite Conference - Statistics and Data Science Education in STEAM}}, publisher = {{International Association for Statistics Education}}, title = {{{Editorial}}}, doi = {{10.52041/iase25.158}}, year = {{2026}}, } @article{64176, author = {{Deutschen, Katrin and Neufeld, Inga and Häsel-Weide, Uta}}, journal = {{Grundschule aktuell}}, number = {{173}}, pages = {{10--11}}, title = {{{Lernbegleitung produktiv gestalten. Mathematische Verstehensprozesse von Kindern anregen.}}}, year = {{2026}}, } @inbook{65026, author = {{Neufeld, Inga and Häsel-Weide, Uta}}, booktitle = {{Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften. Konzeptionen und Forschungsperspektiven}}, editor = {{Vogelsang, C. and Grotegurt, L. and Bruns, J. and Riese, J. and Fechner, S.}}, pages = {{119--134}}, title = {{{ Lernbegleitung in der mathematischen Förderung. Praktiken von (angehenden) Lehrkräften bei der Förderung arithmetischer Basiskompetenzen}}}, doi = {{10.31244/9783818851057 }}, year = {{2026}}, }