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A polynomial time algorithm which detects all paths and cycles of all lengths in form of vertex pairs (start, finish).

Discrete Mathematics · Computer Science 2007-09-10 Sergey Gubin

We prove that the outer automorphism group of a free group of countably infinite rank is complete.

Group Theory · Mathematics 2025-05-20 Vladimir A. Tolstykh

Let $K$ be a field and $f:\mathbb{P}^N \to \mathbb{P}^N$ a morphism. There is a natural conjugation action on the space of such morphisms by elements of the projective linear group $\text{PGL}_{N+1}$. The group of automorphisms, or…

Number Theory · Mathematics 2016-04-12 Joao Alberto de Faria , Benjamin Hutz

We describe the groups of automorphisms of two generated free braided associative algebras with involutive diagonal braidings over a field of characteristic $\neq 2$. Depending on the form of the diagonal involutive braiding, five different…

Rings and Algebras · Mathematics 2021-03-12 Riza Mutalip , Altyngul Naurazbekova , Ualbai Umirbaev

This paper is devoted to the proof of the property of order separability for free product of free groups with maximal cyclic amalgamated subgroups.

Group Theory · Mathematics 2010-07-09 Vladimir V. Yedynak

We study the free complexification operation for compact quantum groups, $G\to G^c$. We prove that, with suitable definitions, this induces a one-to-one correspondence between free orthogonal quantum groups of infinite level, and free…

Quantum Algebra · Mathematics 2008-11-02 Teodor Banica

In this paper, we developed a new navigation system, which detects obstacles in a sliding window with an adaptive threshold clustering algorithm, classifies the detected obstacles with a decision tree, heuristically predicts potential…

Robotics · Computer Science 2020-06-11 Meng-Yuan Chen , Yong-Jian Wu , Hongmei He

In this paper we present a new characterization of free group actions (in classical differential geometry), involving dynamical systems and representations of the corresponding transformation groups. In fact, given a dynamical system, we…

Differential Geometry · Mathematics 2025-12-24 Stefan Wagner

Drivable free space information is vital for autonomous vehicles that have to plan evasive maneuvers in real-time. In this paper, we present a new efficient method for environmental free space detection with laser scanner based on 2D…

Robotics · Computer Science 2020-07-01 Hesham M. Eraqi , Jens Honer , Sebastian Zuther

This is one of a series papers which aim towards to solve the problem of determining automorphism groups of Frobenius groups. This one solves the problem in the case where the Frobenius kernels are elementary abelian and Frobenius…

Group Theory · Mathematics 2019-01-08 Lei Wang

Free spectrahedra are natural objects in the theories of operator systems and spaces and completely positive maps. They also appear in various engineering applications. In this paper, free spectrahedra satisfying a Reinhardt symmetry…

Functional Analysis · Mathematics 2022-01-21 Scott McCullough , Nicole Tuovila

A spin space group provides a suitable way to fully exploit the symmetry of a spin arrangement with a negligible spin-orbit coupling. There has been a growing interest in applying spin symmetry analysis with the spin space group in the…

Materials Science · Physics 2025-06-25 Kohei Shinohara , Atsushi Togo , Hikaru Watanabe , Takuya Nomoto , Isao Tanaka , Ryotaro Arita

In this short survey article, we try to list maximum number of known results on class preserving automorphisms of finite $p$-groups. We conclude the survey with some interesting (at least for the author) open problems on this topic.

Group Theory · Mathematics 2012-08-28 Manoj K. Yadav

In this paper we look at the automorphisms of the multiplicative group of finite nearfields. We find partial results for the actual automorphism groups. We find counting techniques for the size of all finite nearfields. We then show that…

Rings and Algebras · Mathematics 2016-02-02 Tim Boykett , Karin-Therese Howell

We explore orbits, rational invariant functions, and quotients of the natural actions of connected, not necessarily finite dimensional subgroups of the automorphism groups of irreducible algebraic varieties. The applications of the results…

Algebraic Geometry · Mathematics 2014-05-07 Vladimir L. Popov

The homology groups of the automorphism group of a free group are known to stabilize as the number of generators of the free group goes to infinity, and this paper relativizes this result to a family of groups that can be defined in terms…

Geometric Topology · Mathematics 2014-11-11 Allen Hatcher , Nathalie Wahl

A common task in robotics is unloading identical goods from a tray with rectangular grid structure. This naturally leads to the idea of programming the process at one grid position only and translating the motion to the other grid points,…

Robotics · Computer Science 2018-11-20 Martin Weiß

Automorphism groups of $2$-groups of coclass at most $3$ are investigated.

Group Theory · Mathematics 2018-10-05 Alireza Abdollahi , Nafiseh Rahmani

The Whitehead Model of free groups can be used to measure the complexity, or degree, of automorphisms of free groups. The bound for the degree of the $f \circ g$ for deg$(f) =$ deg($g) = 0$ had previously been discovered. We extend this…

Group Theory · Mathematics 2023-05-16 Robert Rust

Multiple Object Tracking (MOT) has rapidly progressed in recent years. Existing works tend to design a single tracking algorithm to perform both detection and association. Though ensemble learning has been exploited in many tasks, i.e,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-20 Yunhao Du , Zihang Liu , Fei Su
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