Results 21 to 30 of about 2,545 (225)

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

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

Conjugacy classes in algebraic monoids [PDF]

open access: yesTransactions of the American Mathematical Society, 1987
Let M M be a connected linear algebraic monoid with zero and a reductive group of units
openaire   +1 more source

Topological conjugacy of n-multiple Cartesian products of circle rough transformations [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2021
It is known from the 1939 work of A. G. Mayer that rough transformations of the circle are limited to the diffeomorphisms of Morse – Smale. A topological conjugacy class of orientation-preserving diffeomorphism is entirely determined by its ...
Golikova, Iuliana Viktorovna   +1 more
doaj   +1 more source

COPRIME CONJUGACY CLASS SIZES [PDF]

open access: yesAsian-European Journal of Mathematics, 2009
We consider finite groups in which every triple of distinct conjugacy class sizes greater than one has a pair which is coprime. We prove such a group is soluble and has conjugate rank at most three.
Camina, A. R., Camina, R. D.
openaire   +1 more source

The Class Equation and the Commutativity Degree for Complete Hypergroups

open access: yesMathematics, 2020
The aim of this paper is to extend, from group theory to hypergroup theory, the class equation and the concept of commutativity degree. Both of them are studied in depth for complete hypergroups because we want to stress the similarities and the ...
Andromeda Cristina Sonea, Irina Cristea
doaj   +1 more source

Designs from maximal subgroups and conjugacy classes of $\mathrm{PSL}(2,q)$, $q$ odd [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2023
In this paper, using a method of construction of $1$-designs which are not necessarily symmetric, introduced by Key and Moori, we determine a number of $1$-designs with interesting parameters from the maximal subgroups and the conjugacy classes of ...
Xavier Mbaale   +2 more
doaj   +1 more source

Quotients for Sheets of Conjugacy Classes [PDF]

open access: yes, 2019
We provide a description of the orbit space of a sheet S for the conjugation action of a complex simple simply connected algebraic group G. This is obtained by means of a bijection between S/G and the quotient of a shifted torus modulo the action of a subgroup of the Weyl group and it is the group analogue of a result due to Borho and Kraft.
Carnovale, Giovanna, Esposito, Francesco
openaire   +3 more sources

Partial orders on conjugacy classes in the Weyl group and on unipotent conjugacy classes [PDF]

open access: yesAdvances in Mathematics, 2021
Let $G$ be a reductive group over an algebraically closed field and let $W$ be its Weyl group. In a series of papers, Lusztig introduced a map from the set $[W]$ of conjugacy classes of $W$ to the set $[G_u]$ of unipotent classes of $G$. This map, when restricted to the set of elliptic conjugacy classes $[W_e]$ of $W$, is injective.
Adams, Jeffrey, He, Xuhua, Nie, Sian
openaire   +3 more sources

Teichmüller spaces and HR structures for hyperbolic surface dynamics [PDF]

open access: yes, 2002
We construct a Teichmüller space for the C^{1+}-conjugacy classes of hyperbolic dynamical systems on surfaces. After introducing the notion of an HR structure which associates an affine structure with each of the stable and unstable laminations, we show ...
D. A. RAND   +3 more
core   +1 more source

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