Results 21 to 30 of about 5,394,965 (221)

Automorphism groups of graph covers and uniform subset graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2018
Hofmeister considered the automorphism groups of antipodal graphs through the exploration of graph covers. In this note we extend the exploration of automorphism groups of distance preserving graph covers.
N.B. Mumba, E. Mwambene
doaj   +2 more sources

A new characterization of the automorphism groups of Mathieu groups

open access: yesOpen Mathematics, 2021
Let cd(G){\rm{cd}}\left(G) be the set of irreducible complex character degrees of a finite group GG. ρ(G)\rho \left(G) denotes the set of primes dividing degrees in cd(G){\rm{cd}}\left(G).
Liu Xin, Chen Guiyun, Yan Yanxiong
doaj   +1 more source

Automorphism groups of some families of bipartite graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2021
This paper discusses the automorphism group of a  class of  weakly semiregular bipartite graphs and its subclass called WSBEND graphs.  It also tries to analyse the  automorphism group of the SM sum graphs and SM balancing graphs.
K.G. Sreekumar, K. Manilal
doaj   +1 more source

Most switching classes with primitive automorphism groups contain graphs with trivial groups [PDF]

open access: yes, 2015
The operation of switching a graph Gamma with respect to a subset X of the vertex set interchanges edges and non-edges between X and its complement, leaving the rest of the graph unchanged.
Cameron, Peter Jephson, Spiga, Pablo
core   +2 more sources

Automorphisms of Automorphism Groups of Free Groups

open access: yesJournal of Algebra, 2000
The main result of the paper states that, for \(n\geq 3\), every automorphism of the outer automorphism group \(\text{Out}(F_n)\) of the free group \(F_n\) of rank \(n\) is an inner automorphism, or in other words that \(\text{Out}(\text{Out}(F_n))\) is the trivial group (and the same also for the automorphism group \(\Aut(F_n)\), a result obtained ...
Bridson, M, Vogtmann, K
openaire   +2 more sources

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

open access: yes, 2011
Automorphism groups survey similarities on mathematical systems, which appear nearly in all mathematical branches, such as those of algebra, combinatorics, geometry, · · · and theoretical physics, theoretical chemistry, etc..
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

Automorphism groups of the constituent graphs of integral distance graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
In this paper, we consider the automorphism groups of Cayley graphs which are a basis of a complete Boolean algebra of strongly regular graphs, one of such graph is the integral distance graph [Formula: see text] The automorphism groups of the integral ...
O. Habineza, E. Mwambene
doaj   +1 more source

Frobenius groups as groups of automorphisms [PDF]

open access: yesProceedings of the American Mathematical Society, 2010
We show that if G F H GFH
Makarenko, N. Yu., Shumyatsky, Pavel
openaire   +2 more sources

Algebraic reflexivity of isometry groups and automorphism groups of some operator structures [PDF]

open access: yes, 2013
We establish the algebraic re exivity of three isometry groups of operator structures: The group of all surjective isometries on the unitary group, the group of all surjective isometries on the set of all positive invertible operators equipped with ...
Botelho, Fernanda   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy