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We show that a group whose generalized torsion elements are torsion elements (which we call a $TR^{*}$-group) is torsion-by-$R^{*}$ group, an extension of torsion group by a group without generalized torsion elements. We also discuss a…

Group Theory · Mathematics 2026-02-11 Tetsuya Ito

Given a Hopf algebra $A$ graded by a discrete group together with an action of the same group preserving the grading, we define a new Hopf algebra, which we call the graded twisting of $A$. If the action is adjoint, this new Hopf algebra is…

Quantum Algebra · Mathematics 2021-06-10 Julien Bichon , Sergey Neshveyev , Makoto Yamashita

As dynamical systems equipped with neural network controllers (neural feedback systems) become increasingly prevalent, it is critical to develop methods to ensure their safe operation. Verifying safety requires extending control theoretic…

Systems and Control · Electrical Eng. & Systems 2026-04-15 I. Samuel Akinwande , Chelsea Sidrane , Mykel J. Kochenderfer , Clark Barrett

We present PEPSKit.jl, a Julia package for simulating two-dimensional quantum many-body systems with infinite projected entangled-pair states (iPEPS). PEPSKit.jl builds on the TensorKit.jl package for tensor computations and provides…

Strongly Correlated Electrons · Physics 2026-05-20 Paul Brehmer , Lander Burgelman , Zheng-Yuan Yue , Gleb Fedorovich , Jutho Haegeman , Lukas Devos

The complete group classification of a generalization of the Heath model is carried out by connecting it to the heat equation with nonlinear source. Examples of invariant solutions are given under the terminal and the barrier option…

Analysis of PDEs · Mathematics 2014-06-10 Y. Bozhkov , S. Dimas

We propose to synthesize feasible caging grasps for a target object through computing Caging Loops, a closed curve defined in the shape embedding space of the object. Different from the traditional methods, our approach decouples caging…

Robotics · Computer Science 2018-08-01 Jian Liu , Shiqing Xin , Zengfu Gao , Kai Xu , Changhe Tu , Baoquan Chen

We describe a simple, but effective, method for deriving families of elliptic curves, with high rank, all of whose members have the same torsion subgroup structure.

Number Theory · Mathematics 2014-10-08 Allan J. MacLeod

We present a Julia package HypersurfaceRegions.jl for computing all connected components in the complement of an arrangement of real algebraic hypersurfaces in $\mathbb{R}^n$.

Mathematical Software · Computer Science 2025-11-26 Paul Breiding , Bernd Sturmfels , Kexin Wang

In this article, we describe a new algorithm for the expansion of hypergeometric functions about half-integer parameters. The implementation of this algorithm for certain classes of hypergeometric functions in the already existing…

High Energy Physics - Phenomenology · Physics 2008-11-26 T. Huber , D. Maître

We introduce a cohomology set for groups defined by algebraic difference equations and show that it classifies torsors under the group action. This allows us to compute all torsors for large classes of groups. We also develop some tools for…

Algebraic Geometry · Mathematics 2016-07-26 Annette Bachmayr , Michael Wibmer

We present the powerful module-intersection integration-by-parts (IBP) method, suitable for multi-loop and multi-scale Feynman integral reduction. Utilizing modern computational algebraic geometry techniques, this new method successfully…

High Energy Physics - Theory · Physics 2018-09-11 Janko Boehm , Alessandro Georgoudis , Kasper J. Larsen , Hans Schoenemann , Yang Zhang

The rational homology group of the order complex of non-even partitions of a finite set is calculated. A twisted version of the Goresky-MacPherson approach to similar homology calculations is proposed.

Combinatorics · Mathematics 2018-07-17 Victor A. Vassiliev

At present time when a new generation of TeV colliders are beginning to operate one needs to calculate cross-sections for a great number of various reactions. Such calculations are united in the framework of the collider physical program,…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. E. Boos , M. N. Dubinin , V. A. Ilyin , A. E. Pukhov , V. I. Savrin

We show that the mapping class group of a handlebody is a virtual duality group, in the sense of Bieri and Eckmann. In positive genus we give a description of the dualising module of any torsion-free, finite-index subgroup of the handlebody…

Geometric Topology · Mathematics 2026-05-15 Dan Petersen , Richard D. Wade

Grasping mechanisms must both create and subsequently hold grasps that permit safe and effective object manipulation. Existing mechanisms address the different functional requirements of grasp creation and grasp holding using a single…

We give a short and elementary introduction to Lie group methods. A selection of applications of Lie group integrators are discussed. Finally, a family of symplectic integrators on cotangent bundles of Lie groups is presented and the notion…

Numerical Analysis · Mathematics 2014-01-22 Elena Celledoni , Håkon Marthinsen , Brynjulf Owren

Grasping is fundamental to robotic manipulation, and recent advances in large-scale grasping datasets have provided essential training data and evaluation benchmarks, accelerating the development of learning-based methods for robust object…

Robotics · Computer Science 2025-07-04 Siyu Ma , Wenxin Du , Chang Yu , Ying Jiang , Zeshun Zong , Tianyi Xie , Yunuo Chen , Yin Yang , Xuchen Han , Chenfanfu Jiang

In the last decade, developments in tropical geometry have provided a number of uses directly applicable to problems in statistical learning. The TML package is the first R package which contains a comprehensive set of tools and methods…

Machine Learning · Statistics 2024-12-18 David Barnhill , Ruriko Yoshida , Georgios Aliatimis , Keiji Miura

To address the absence of a universal standard interface for tensor operations, we introduce the Tensor Algebra Processing Primitives (TAPP), a C-based interface designed to decouple the application layer from hardware-specific…

Mathematical Software · Computer Science 2026-01-13 Jan Brandejs , Niklas Hörnblad , Edward F. Valeev , Alexander Heinecke , Jeff Hammond , Devin Matthews , Paolo Bientinesi

This paper discusses experimental techniques and considerations associated with the transition to high repetition-rate experiments in High Energy Density Physics (HEDP). We particularly highlight approaches to experimentation that become…

Plasma Physics · Physics 2019-06-28 Scott Feister , Patrick L. Poole , Peter V. Heuer