Results 31 to 40 of about 18,324 (228)

Perfect matching transitivity of circulant graphs.

open access: yesElectronic Journal of Graph Theory and Applications, 2022
A graph G is perfect matching transitive, shortly PM-transitive, if for any two perfect matchings M1 and M2 of G, there is an automorphism f : V(G)↦V(G) such that fe(M1)=M2, where fe(uv)=f(u)f(v).
Isaac Armando Reiter, Ju Zhou
doaj   +1 more source

Automorphisms of Submanifolds [PDF]

open access: yesAdvances in Difference Equations, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Veronika Chrastinová   +1 more
openaire   +3 more sources

∇-prime rings and their commutativity

open access: yesJournal of Taibah University for Science, 2023
Consider a ring with an (anti)-automorphism ∇ of finite order. The fundamental aim of this manuscript is to introduce the notions of ∇-(semi)prime ideal and ∇-(semi)prime ring as a generalization of the notions of (semi)prime ideal, [Formula: see text ...
Mohammad Aslam Siddeeque   +1 more
doaj   +1 more source

Braiding groups of automorphisms and almost-automorphisms of trees

open access: yesCanadian Journal of Mathematics, 2023
AbstractWe introduce “braided” versions of self-similar groups and Röver–Nekrashevych groups, and study their finiteness properties. This generalizes work of Aroca and Cumplido, and the first author and Wu, who considered the case when the self-similar groups are what we call “self-identical.” In particular, we use a braided version of the Grigorchuk ...
Rachel Skipper, Matthew C. B. Zaremsky
openaire   +3 more sources

On automorphisms of biproducts [PDF]

open access: yesCommunications in Algebra, 2016
We study certain subgroups of the full group of Hopf algebra automorphisms of a biproduct. In the process interesting subgroups of certain permutation groups come into play.
openaire   +2 more sources

AUTOMORPHISM GROUPS OF MAPS, SURFACES AND SMARANDACHE GEOMETRIES [PDF]

open access: yes, 2005
A combinatorial map is a connected topological graph cellularly embedded in a surface. As a linking of combinatorial configuration with the classical mathematics, it fascinates more and more mathematician’s interesting.
Linfan Mao, MAO, LINFAN
core   +1 more source

FREE GROUPS AND AUTOMORPHISM GROUPS OF INFINITE STRUCTURES

open access: yesForum of Mathematics, Sigma, 2014
Given a cardinal $\lambda $ with $\lambda =\lambda ^{\aleph _0}$
PHILIPP LÜCKE, SAHARON SHELAH
doaj   +1 more source

Endomorphisms of the Toeplitz algebra

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2023
This article describes all injective endomorphisms of the classical Toeplitz algebra. Their connection with endomorphisms of the algebra of continuous functions on the unit circle and with coverings over the unit circle was considered.
S. A. Grigoryan, A. Yu. Kuznetsova
doaj   +1 more source

On the group of automorphisms of the algebra of plural numbers

open access: yesДифференциальная геометрия многообразий фигур, 2023
The algebra of dual numbers was first introduced by V. K. Clifford in 1873. The algebras of plural and dual numbers are analogous to the algebra of complex numbers. Dual numbers form an algebra, but not a field, because only dual numbers with a real part
A. Ya. Sultanov   +2 more
doaj   +1 more source

Automorphisms of free braided nonassociative algebras of rank 2

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
We prove the elementary reducibility of any nonaffine automorphism of a free nonassociative algebra of rank two over an arbitrary field. Using this result establish a property of automorphisms of this algebra that will be needed in later. We then derive
R. Mutalip   +2 more
doaj   +1 more source

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