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This article introduces a software package release for geometrically reasoning about the \textit{safety} desiderata of (complex) dynamical systems via level set methods. In emphasis, safety is analyzed with Hamilton-Jacobi equations. In…

Mathematical Software · Computer Science 2025-07-17 Lekan Molu

We outline how the group $K_{-1}( \mathbb{Z}[G] )$ for a finite group $G$ can be computed using the computer language $GAP$ and compile a table of all groups $G$ of order less than $100$ that have torsion in $K_{-1}( \mathbb{Z}[G] )$.

K-Theory and Homology · Mathematics 2024-11-05 Georg Lehner

Using the Luthar-Passi method, we investigate the classical Zassenhaus conjecture for the normalized unit group of the integral group ring of the Higman-Sims simple sporadic group HS. As a consequence, we confirm the Kimmerle's conjecture…

Rings and Algebras · Mathematics 2007-05-23 V. A. Bovdi , A. B. Konovalov

An algorithmic computation of the set of unpointed stable homotopy classes of equivariant fibrewise maps was described in a recent paper of the author and his collaborators. In the present paper, we describe a simplification of this…

Algebraic Topology · Mathematics 2013-12-10 Lukáš Vokřínek

In scenarios that require teamwork, we usually have at hand a variety of specific tasks, for which we need to form a team in order to carry out each one. Here we target the problem of matching teams with tasks within the context of…

Artificial Intelligence · Computer Science 2020-05-20 Athina Georgara , Carles Sierra , Juan A. Rodríguez-Aguilar

In this work, we propose a novel framework for large-scale Gaussian process (GP) modeling. Contrary to the global, and local approximations proposed in the literature to address the computational bottleneck with exact GP modeling, we employ…

Machine Learning · Statistics 2023-12-19 Akhil Vakayil , Roshan Joseph

We determine the ring structure of the loop homology of some global quotient orbifolds. We can compute by our theorem the loop homology ring with suitable coefficients of the global quotient orbifolds of the form $[M/G]$ for $M$ being some…

Algebraic Topology · Mathematics 2018-03-16 Yasuhiko Asao

We introduce a new method to study rational conjugacy of torsion units in integral group rings using integral and modular representation theory. Employing this new method, we verify the first Zassenhaus Conjecture for the group…

Representation Theory · Mathematics 2020-04-10 Andreas Bächle , Leo Margolis

Homological stability has shown itself to be a powerful tool for the computation of homology of families of groups such as general linear groups, mapping class groups or automorphisms of free groups. We survey here tools and techniques for…

Algebraic Topology · Mathematics 2025-01-06 Nathalie Wahl

A homotopy theoretic description is given for trivial unit conjecture in the group ring ZG.

Algebraic Topology · Mathematics 2014-01-14 Shengkui Ye

I describe the design, implementation, and usage of galpy, a Python package for galactic-dynamics calculations. At its core, galpy consists of a general framework for representing galactic potentials both in Python and in C (for accelerated…

Astrophysics of Galaxies · Physics 2015-06-23 Jo Bovy

We give a geometric characterization of extremal sets in ell_p spaces that generalizes our previous result for such sets in Hilbert spaces.

Metric Geometry · Mathematics 2007-05-23 V. NguyenKhac , K. NguyenVan

In task and motion planning (TAMP), the ambiguity and underdetermination of abstract descriptions used by task planning methods make it difficult to characterize physical constraints needed to successfully execute a task. The usual approach…

Robotics · Computer Science 2026-02-03 Alejandro Agostini , Justus Piater

We develop a package using the computer algebra system GAP for computing the decomposition of a representation $\rho$ of a finite group $G$ over $\mathbb{C}$ into irreducibles, as well as the corresponding decomposition of the centraliser…

Group Theory · Mathematics 2020-07-10 Kaashif Hymabaccus , Dmitrii Pasechnik

A group element is called a generalized torsion if a finite product of its conjugates is equal to the identity. We prove that in a nilpotent or FC-group, the generalized torsion elements are all torsion elements. Moreover, we compute the…

Group Theory · Mathematics 2025-08-28 Raimundo Bastos , Csaba Schneider , Danilo Silveira

This paper presents an assisted telemanipulation framework for reaching and grasping desired objects from clutter. Specifically, the developed system allows an operator to select an object from a cluttered heap and effortlessly grasp it,…

Robotics · Computer Science 2023-07-17 Maxime Adjigble , Rustam Stolkin , Naresh Marturi

We show that for a class of two-loop diagrams, the on-shell part of the integration-by-parts (IBP) relations correspond to exact meromorphic one-forms on algebraic curves. Since it is easy to find such exact meromorphic one-forms from…

High Energy Physics - Theory · Physics 2016-01-27 Alessandro Georgoudis , Yang Zhang

Hamiltonian and action principle (HAP) formulations of plasma physics are reviewed for the purpose of explaining structure preserving numerical algorithms. Geometric structures associated with and emergent from HAP formulations are…

Plasma Physics · Physics 2017-05-24 P. J. Morrison

This article uses homological methods for evaluating compactly supported cohomology groups of noncompact toric surfaces

K-Theory and Homology · Mathematics 2015-05-26 Malgorzata Aneta Marciniak

We introduce machine-learned potentials for Ag-Pd to describe the energy of alloy configurations over a wide range of compositions. We compare two different approaches. Moment tensor potentials (MTP) are polynomial-like functions of…

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