Results 21 to 30 of about 4,080,638 (238)

Countably recognizable classes of groups with restricted conjugacy classes [PDF]

open access: yesInternational Journal of Group Theory, 2018
A group class ${ X}$ is said to be countably recognizable if a group belongs to ${X}$ whenever all its countable subgroups lie in ${X}$‎. ‎It is proved here that most of the relevant classes of groups defined by restrictions on the conjugacy classes are ...
Francesco de Giovanni, Marco Trombetti
doaj   +1 more source

Twisted conjugacy classes in unitriangular groups [PDF]

open access: yesJournal of group theroy, 2018
Let R be an integral domain of characteristic zero. In this note we study the Reidemeister spectrum of the group UTn⁢(R){{\rm UT}_{n}(R)} of unitriangular matrices over R.
T. Nasybullov
semanticscholar   +1 more source

On products of conjugacy classes in general linear groups [PDF]

open access: yesInternational Journal of Group Theory, 2022
Let $K$ be a field and $n\geq 3$. Let $E_n(K)\leq H\leq GL_n(K)$ be an intermediate group and $C$ a noncentral $H$-class. Define $m(C)$ as the minimal positive integer $m$ such that $\exists i_1,\ldots,i_m\in\{\pm 1\}$ such that the product $C^{i_1 ...
Raimund Preusser
doaj   +1 more source

Mathieu moonshine and Siegel Modular Forms

open access: yesJournal of High Energy Physics, 2021
A second-quantized version of Mathieu moonshine leads to product formulae for functions that are potentially genus-two Siegel Modular Forms analogous to the Igusa Cusp Form. The modularity of these functions do not follow in an obvious manner.
Suresh Govindarajan, Sutapa Samanta
doaj   +1 more source

On conjugacy classes of Sn containing all irreducibles [PDF]

open access: yesIsrael Journal of Mathematics, 2016
It is shown that for the conjugation action of the symmetric group Sn, when n = 6 or n ≥ 8, all Sn-irreducibles appear as constituents of a single conjugacy class, namely, one indexed by a partition λ of n with at least two parts, whose parts are all ...
S. Sundaram
semanticscholar   +1 more source

Groups with Černikov conjugacy classes [PDF]

open access: yesJournal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics, 1991
AbstractThe aim of this paper is to prove some embedding theorems for groups with Černikov conjugacy classes. Moreover a characterization of periodic central-by-Černikov groups is given.
DE GIOVANNI, FRANCESCO   +2 more
openaire   +3 more sources

Groups with Boundedly Finite Conjugacy Classes of Commutators. [PDF]

open access: yes, 2017
In 1954 B. H. Neumann discovered that if G is a group in which all conjugacy classes are finite with bounded size, then the derived group G' is finite. Later (in 1957) Wiegold found an explicit bound for the order of G'.
Gláucia Dierings, P. Shumyatsky
semanticscholar   +1 more source

Topological Conjugacy of Gradient-Like Flows on Surfaces and Efficient Algorithms for Its Distinguition

open access: yesСовременная математика: Фундаментальные направления, 2022
Gradient-like flows on surfaces have simple dynamics, which inspired many mathematicians to search for invariants of their topological equivalence. Under assumptions of different generality on the class of gradient-like flows under consideration, such ...
V. E. Kruglov, O. V. Pochinka
doaj   +1 more source

Two moonshines for L2(11) but none for M12

open access: yesNuclear Physics B, 2019
In this paper, we revisit an earlier conjecture by one of us that related conjugacy classes of M12 to Jacobi forms of weight zero and index one. We construct Jacobi forms for all conjugacy classes of M12 that are consistent with constraints from group ...
Suresh Govindarajan, Sutapa Samanta
doaj   +1 more source

Characteristics of the Number of Conjugacy Classes and P-Regular Classes in Finite Symmetric Groups

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
In this work, the number of p – regular classes Nprc(Sn) in symmetric group Sn is always less than or equal to the number of conjugacy classes Nc(Sn) in Sn is shown.
S. Khalil, Nadia M. Ali Abbas
semanticscholar   +1 more source

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