@inproceedings{62271, author = {{Weizel, Maxim and Gudyriev, Sergiy and Zazzi, Andrea and Müller, Juliana and Schwabe, Tobias and Witzens, Jeremy and Scheytt, J. Christoph}}, booktitle = {{2025 32nd IEEE International Conference on Electronics, Circuits and Systems (ICECS)}}, location = {{Marrakesh, Morocco}}, publisher = {{IEEE}}, title = {{{High Voltage (5Vpp) Driver Monolithically Integrated with Thermally Tunable Optical Ring Resonators in a Silicon Photonics Technology}}}, doi = {{10.1109/ICECS66544.2025.11270577}}, year = {{2025}}, } @inproceedings{63054, author = {{Apostolo, Guilherme Henrique and Bauszat, Pablo and Nigade, Vinod and Bal, Henri E. and Wang, Lin}}, booktitle = {{Proceedings of the 31st Annual International Conference on Mobile Computing and Networking (MobiCom)}}, location = {{Hong Kong, China}}, publisher = {{ACM}}, title = {{{Uirapuru: Timely Video Analytics for High-Resolution Steerable Cameras on Edge Devices}}}, doi = {{10.1145/3680207.3765260}}, year = {{2025}}, } @article{63057, author = {{Pei, Qiangyu and Yuan, Yongjie and Hu, Haichuan and Wang, Lin and Zhang, Dong and Yan, Bingheng and Yu, Chen and Liu, Fangming}}, issn = {{2377-3782}}, journal = {{IEEE Transactions on Sustainable Computing}}, number = {{4}}, pages = {{804--819}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Working Smarter Not Harder: Hybrid Cooling for Deep Learning in Edge Datacenters}}}, doi = {{10.1109/tsusc.2025.3542563}}, volume = {{10}}, year = {{2025}}, } @inproceedings{63056, author = {{Wu, Jing and Wang, Lin and Deng, Quanfeng and Yu, Chen and Zhang, Dong and Yan, Bingheng and Liu, Fangming}}, booktitle = {{2025 IEEE International Parallel and Distributed Processing Symposium (IPDPS)}}, location = {{Milan, Italy}}, publisher = {{IEEE}}, title = {{{It Takes Two to Tango: Serverless Workflow Serving via Bilaterally Engaged Resource Adaptation}}}, doi = {{10.1109/ipdps64566.2025.00012}}, year = {{2025}}, } @article{63053, author = {{Hernández, Carlos and Rodriguez-Fernandez, Angel E. and Schäpermeier, Lennart and Cuate, Oliver and Trautmann, Heike and Schütze, Oliver}}, journal = {{IEEE Transactions on Evolutionary Computation}}, keywords = {{Optimization, Evolutionary computation, Hands, Proposals, Convergence, Computational efficiency, Artificial intelligence, Accuracy, Approximation algorithms, Aerospace electronics, Multi-objective optimization, evolutionary algorithms, nearly optimal solutions, multimodal optimization, archiving, continuation}}, pages = {{1--1}}, title = {{{An Evolutionary Approach for the Computation of ∈-Locally Optimal Solutions for Multi-Objective Multimodal Optimization}}}, doi = {{10.1109/TEVC.2025.3637276}}, year = {{2025}}, } @inproceedings{63036, author = {{Rezat, Sebastian and Glasnović Gracin, Dubravka and Van Steenbrugge, Hendrik and Sievert, Henning}}, booktitle = {{Proceedings of the Fifth International Conference on Mathematics Textbook Research and Development.}}, editor = {{Pepin, Birgit and Kohanová, Iveta and Langfeldt, Marit Buset}}, isbn = {{978-82-691902-2-9}}, location = {{Trondheim, Norway}}, pages = {{72–91}}, publisher = {{Norwegian University of Science and Technology.}}, title = {{{The quality of print and digital mathematics curriculum resources}}}, year = {{2025}}, } @inproceedings{63034, author = {{Stallmeister, Lea and Rezat, Sebastian}}, booktitle = {{Proceedings of the Fifth International Conference on Mathematics Textbook Research and Development}}, editor = {{Pepin, Birgit and Kohanová, Iveta and Langfeldt, Marit Buset}}, isbn = {{978-82-691902-2-9}}, location = {{Trondheim, Norway}}, publisher = {{Norwegian University of Science and Technology}}, title = {{{Students’ use of different material resources for specific purposes in the process of learning mathematics}}}, year = {{2025}}, } @inproceedings{63058, author = {{Ghafouri, Saeid and Razavi, Kamran and Salmani, Mehran and Sanaee, Alireza and Botran, Tania Lorido and Wang, Lin and Doyle, Joseph and Jamshidi, Pooyan}}, booktitle = {{Companion of the 16th ACM/SPEC International Conference on Performance Engineering}}, publisher = {{ACM}}, title = {{{IPA: Inference Pipeline Adaptation to Achieve High Accuracy and Cost-Efficiency}}}, doi = {{10.1145/3680256.3721266}}, year = {{2025}}, } @article{60196, abstract = {{This paper examines the governance and quality control of digital curriculum resources (DCR) for K-12 mathematics education in Germany. It focuses on approval processes and criteria set by the 16 federal states, arguing that these have the potential to influence the development of DCR. Using qualitative content analysis, the study explores three research questions: which DCR require official approval, the criteria applied for approval, and the extent to which these criteria are mathematics-specific. Findings indicate that 10 federal states maintain official approval systems, covering digital equivalents of printed textbooks and selected supplemental materials. However, most DCR fall outside these regulated processes, leaving their evaluation largely to individual schools and teachers. The study identifies 17 categories of quality criteria, but reveals a lack of detailed, mathematics-specific requirements. Instead, many criteria are broad references to didactical principles and educational goals, leaving the interpretation and application of these quality standards open-ended. Subject-specific criteria are included but remain limited in specificity. The study underscores the need for research-informed, mathematics-specific quality standards to guide DCR development and approval, emphasizing their importance amidst challenges like artificial intelligence. Policymakers are urged to adopt clearer criteria to ensure high-quality DCR to be used in schools.}}, author = {{Rezat, Sebastian}}, issn = {{1863-9690}}, journal = {{ZDM – Mathematics Education}}, keywords = {{governance, digital curriculum resources, digital textbooks, digital curriculum materials, quality}}, pages = {{ 891–904}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{The quality of digital curriculum resources for mathematics in German educational policy}}}, doi = {{10.1007/s11858-025-01708-w}}, volume = {{57}}, year = {{2025}}, } @unpublished{63150, author = {{Cummings, Charley and Gratz, Sira and Kirkman, Ellen and Letz, Janina Carmen and Rock, J. Daisie and Špenko, Špela}}, pages = {{1--9}}, title = {{{An equivalence linking CM-types $A_\infty$ and $D_\infty$}}}, year = {{2025}}, } @unpublished{63149, author = {{Kekkou, Antonia and Letz, Janina Carmen and Stephan, Marc}}, pages = {{1--37}}, title = {{{Regular sequences for triangulated categories}}}, year = {{2025}}, } @unpublished{63148, author = {{Letz, Janina Carmen}}, pages = {{1--7}}, title = {{{The Rouquier dimension of the category of perfect complexes over a regular ring}}}, year = {{2025}}, } @article{59507, abstract = {{Differential equations posed on quadratic matrix Lie groups arise in the context of classical mechanics and quantum dynamical systems. Lie group numerical integrators preserve the constants of motions defining the Lie group. Thus, they respect important physical laws of the dynamical system, such as unitarity and energy conservation in the context of quantum dynamical systems, for instance. In this article we develop a high-order commutator free Lie group integrator for non-autonomous differential equations evolving on quadratic Lie groups. Instead of matrix exponentials, which are expensive to evaluate and need to be approximated by appropriate rational functions in order to preserve the Lie group structure, the proposed method is obtained as a composition of Cayley transforms which naturally respect the structure of quadratic Lie groups while being computationally efficient to evaluate. Unlike Cayley-Magnus methods the method is also free from nested matrix commutators.}}, author = {{Wembe Moafo, Boris Edgar and Offen, Cristian and Maslovskaya, Sofya and Ober-Blöbaum, Sina and Singh, Pranav}}, journal = {{J. Comput. Appl. Math}}, number = {{15}}, title = {{{Commutator-free Cayley methods}}}, doi = {{10.1016/j.cam.2025.117184}}, volume = {{477}}, year = {{2025}}, } @inproceedings{63157, abstract = {{Three-phase cascaded H-bridge converters (CHBs) in star configuration require reliable current controllers to evenly charge the module DC-link capacitors. Conventionally, a current control in dq-coordinates is utilized. At steady state, the resulting calculated reference arm voltages are sinusoidal, have identical amplitudes and show a phase shift of 120 degree to each other. For balanced grid inductors, the resulting grid currents also have the same amplitude. However, own simulations show that unbalanced grid inductors always lead to different grid current amplitudes (4% difference in this case). As a result, the averaged charging module powers differ and the peak DC-link capacitor voltage rises as well. In the first step, an adaptation of an existing zero-sequence voltage injection is proposed. For balanced grid inductors, it converges to the 3rd harmonic voltage injection which can reduce the peak-to-peak DC-link voltage ripple up by to 50% and balances the power between the phases. However, unbalanced grid inductors still lead to the same unbalanced grid currents of 4%. Therefore, a new method with 4 integrators based on linear regression is proposed to achieve sinusoidal grid currents for unbalanced inductors. The proposed method has a similar transient dynamic as the conventional dq control, but balances the grid currents nearly ideally. Simulation results of a 1MW cascaded H bridge and a scaled-down prototype verify the proposed method.}}, author = {{Unruh, Roland and Böcker, Joachim and Schafmeister, Frank}}, booktitle = {{2025 Energy Conversion Congress & Expo Europe (ECCE Europe)}}, keywords = {{Cascaded H-Bridge, Current Control, dq Transformation, Linear Regression, Unbalanced Inductors}}, location = {{Birmingham, United Kingdom}}, publisher = {{IEEE}}, title = {{{Three-Phase Instantaneous Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded H-Bridge Converters}}}, doi = {{10.1109/ecce-europe62795.2025.11238538}}, year = {{2025}}, } @unpublished{63187, author = {{Kidner, Arnott Jeffery Joel and Steffen, Eckhard and Yu, Weiqiang}}, booktitle = {{arXiv:2512.14285}}, title = {{{Edge-coloring 4- and 5-regular projective planar graphs with no Petersen-minor}}}, year = {{2025}}, } @inproceedings{60746, author = {{Jakobeit, Darius and Peña López, Mario and Schenke, Maximilian and Haucke-Korber, Barnabas and Wallscheid, Oliver}}, booktitle = {{2025 IEEE International Electric Machines & Drives Conference (IEMDC)}}, publisher = {{IEEE}}, title = {{{Structural Optimization of Meta-Reinforcement Learning-based Finite-Control-Set Direct Torque Control of Permanent Magnet Synchronous Motors}}}, doi = {{10.1109/iemdc60492.2025.11061179}}, year = {{2025}}, } @inproceedings{60745, author = {{Haucke-Korber, Barnabas and Aung, Nyi Nyi and Schenke, Maximilian and Peña López, Mario and Jakobeit, Darius and Wallscheid, Oliver}}, booktitle = {{2025 IEEE International Electric Machines & Drives Conference (IEMDC)}}, publisher = {{IEEE}}, title = {{{Reinforcement Learning-based Direct Torque Control of Externally Excited Synchronous Motors: a Proof of Concept}}}, doi = {{10.1109/iemdc60492.2025.11061093}}, year = {{2025}}, } @inproceedings{60744, author = {{Peña López, Mario and Schenke, Maximilian and Jakobeit, Darius and Haucke-Korber, Barnabas and Wallscheid, Oliver}}, booktitle = {{2025 IEEE International Electric Machines & Drives Conference (IEMDC)}}, publisher = {{IEEE}}, title = {{{Reinforcement Learning Control of Three-Level Converter Permanent Magnet Synchronous Machine Drives}}}, doi = {{10.1109/iemdc60492.2025.11061032}}, year = {{2025}}, } @unpublished{63384, abstract = {{Two fundamental ways to represent a group are as permutations and as matrices. In this paper, we study linear representations of groups that intertwine with a permutation representation. Recently, D'Alconzo and Di Scala investigated how small the matrices in such a linear representation can be. The minimal dimension of such a representation is the \emph{linear dimension of the group action} and this has applications in cryptography and cryptosystems. We develop the idea of linear dimension from an algebraic point of view by using the theory of permutation modules. We give structural results about representations of minimal dimension and investigate the implications of faithfulness, transitivity and primitivity on the linear dimension. Furthermore, we compute the linear dimension of several classes of finite primitive permutation groups. We also study wreath products, allowing us to determine the linear dimension of imprimitive group actions. Finally, we give the linear dimension of almost simple finite $2$-transitive groups, some of which may be used for further applications in cryptography. Our results also open up many new questions about linear representations of group actions.}}, author = {{Devillers, Alice and Giudici, Michael and Hawtin, Daniel R. and Klawuhn, Lukas-André Dominik and Morgan, Luke}}, title = {{{Linear dimension of group actions}}}, year = {{2025}}, } @unpublished{63394, abstract = {{We study the statistics of the number of real eigenvalues in the elliptic deformation of the real Ginibre ensemble. As the matrix dimension grows, the law of large numbers and the central limit theorem for the number of real eigenvalues are well understood, but the probabilities of rare events remain largely unexplored. Large deviation type results have been obtained only in extreme cases, when either a vanishingly small proportion of eigenvalues are real or almost all eigenvalues are real. Here, in both the strong and weak asymmetry regimes, we derive the probabilities of rare events in the moderate-to-large deviation regime, thereby providing a natural connection between the previously known regime of Gaussian fluctuations and the large deviation regime. Our results are new even for the classical real Ginibre ensemble.}}, author = {{Byun, Sung-Soo and Jalowy, Jonas and Lee, Yong-Woo and Schehr, Grégory}}, booktitle = {{arXiv:2511.09191}}, title = {{{Moderate-to-large deviation asymptotics for real eigenvalues of the elliptic Ginibre matrices}}}, year = {{2025}}, }