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We give a general constructive proof for hierarchical coordinatizations (Lagrange Decompositions) of permutation groups. The generalization originates from the investigation of how the subgroup chains of finite permutation groups yield…

Group Theory · Mathematics 2009-12-01 Attila Egri-Nagy , Chrystopher L. Nehaniv

We study groups generated by sets of pattern avoiding permutations. In the first part of the paper we prove some general results concerning the structure of such groups. In the second part we carry out a case-by-case analysis of groups…

Combinatorics · Mathematics 2024-07-08 Marilena Barnabei , Niccolò Castronuovo , Matteo Silimbani

We briefly review the distinction between abstract groups and symmetry groups of objects, and discuss the question of which groups have appeared as the symmetry groups of physical objects. To our knowledge, the quaternion group (a beautiful…

History and Overview · Mathematics 2014-04-29 Vi Hart , Henry Segerman

Due to the noncommutative nature of quaternions and octonions we introduce barred operators. This objects give the opportunity to manipulate appropriately the hypercomplex fields. The standard problems arising in the definitions of…

Mathematical Physics · Physics 2008-11-06 Stefano De Leo

We investigate classifications of quasitrivial semigroups defined by certain equivalence relations. The subclass of quasitrivial semigroups that preserve a given total ordering is also investigated. In the special case of finite semigroups,…

Rings and Algebras · Mathematics 2020-05-21 Jimmy Devillet , Jean-Luc Marichal , Bruno Teheux

We prove that finite index subgroups in S-arithmetic Chevalley groups are bounded.

Group Theory · Mathematics 2019-07-16 Światosław R. Gal , Jarek Kędra , Alexander A. Trost

Informed by our understanding of the tt-geometry of permutation modules, we investigate the proper definition of the `stable permutation category' of a finite group. Then we prove that this category decomposes over cyclic and generalized…

Representation Theory · Mathematics 2026-04-21 Paul Balmer , Martin Gallauer

We construct a family of positive but not completely positive linear maps acting on four dimensional space. We employ these maps to detect bound entanglement in high dimensional quantum systems.

Quantum Physics · Physics 2026-04-21 Mazhar Ali

We establish vanishing results for limits of characters in various discrete groups, most notably irreducible lattices in higher rank semisimple Lie groups. As an application, we show that any sequence of finite-dimensional representations…

Group Theory · Mathematics 2024-06-18 Arie Levit , Raz Slutsky , Itamar Vigdorovich

In this work, we generalize the integer enumeration basis. We also construct bijections between the elements of special sets and the elements of some groups, and treat the special case of the hyperoctohedral groups. Then, we find a code…

Number Theory · Mathematics 2014-11-14 F. Patrick Rabarison , Hery Randriamaro

In this paper, we investigate some properties of generalized Fibonacci quaternions and Fibonacci-Narayana quaternions.

Rings and Algebras · Mathematics 2013-02-18 Cristina Flaut , Vitalii Shpakivskyi

For suitable subgroups of a finitely generated group, we define the intersection number of one subgroup with another subgroup and show that this number is symmetric. We also give an interpretation of this number.

Geometric Topology · Mathematics 2014-11-11 Peter Scott

We investigate the notion of a subgroup of a quantum group. We suggest a general definition, which takes into account the work that has been done for quantum homogeneous spaces. We further restrict our attention to reductive subgroups,…

Representation Theory · Mathematics 2016-11-15 Georgia Christodoulou

In this paper, Grand Unified theories are discussed in terms of quaternions and octonions by using the relation between quaternion basis elements with Pauli matrices and Octonions with Gell Mann \lambda matrices. Connection between the…

General Physics · Physics 2015-06-05 Pushpa , P. S. Bisht , Tianjun Li , O. P. S. Negi

We describe the groups that have the same holomorph as a finite perfect group. Our results are complete for centerless groups. When the center is non-trivial, some questions remain open. The peculiarities of the general case are illustrated…

Group Theory · Mathematics 2019-01-09 A. Caranti , F. Dalla Volta

We prove a conjecture of Guarnieri and Vendramin on the number of braces of a given order whose multiplicative group is a generalised quaternion group. At the same time, we give a similar result where the multiplicative group is dihedral.…

Rings and Algebras · Mathematics 2024-04-16 Nigel P. Byott , Fabio Ferri

We provide upper bounds for the cardinality of the value set of a polynomial map in several variables over a finite field. These bounds generalize earlier bounds for univariate polynomials.

Number Theory · Mathematics 2012-10-31 Gary L. Mullen , Daqing Wan , Qiang Wang

Given an iterated function system of affine dilations with fixed points the vertices of a regular polygon, we characterize which points in the limit set lie on the boundary of its convex hull.

Dynamical Systems · Mathematics 2018-11-20 Danny Calegari , Alden Walker

In this paper, we study some new fixed point results for self maps defined on partial metric type spaces. In particular, we give common fixed point theorems in the same setting. Some examples are given which illustrate the results.

General Topology · Mathematics 2018-09-12 Yaé Ulrich Gaba

A B-group is a group such that all its minimal generating sets (with respect to inclusion) have the same size. We prove that the class of finite B-groups is closed under taking quotients and that every finite B-group is solvable. Via a…

Group Theory · Mathematics 2012-11-28 Paul Apisa , Benjamin Klopsch