Results 21 to 30 of about 9,251 (245)

Finite $2$-groups of class $2$ with a specific automorphism group [PDF]

open access: yesInternational Journal of Group Theory, 2017
‎‎In this paper we determine all finite $2$-groups of‎ ‎class $2$ in which every automorphism of order $2$ leaving the Frattini subgroup elementwise fixed is inner‎.
Marzieh Ahmadi, S. Mohsen Ghoraishi
doaj   +1 more source

Graph automaton groups [PDF]

open access: yesAdvances in Group Theory and Applications, 2021
In this paper we define a way to get a bounded invertible automaton starting from a finite graph. It turns out that the corresponding automaton group is regular weakly branch over its commutator subgroup, contains a free semigroup on two elements and is ...
Matteo Cavaleri   +3 more
doaj   +1 more source

Automorphism groups of superextensions of groups [PDF]

open access: yesMatematychni Studii, 2017
9 ...
Volodymyr Gavrylkiv, Taras Banakh
openaire   +2 more sources

Algebraic automorphism groups [PDF]

open access: yesIllinois Journal of Mathematics, 1975
For an algebraic group G, let W(G) denote the group of all algebraic group automorphisms of G. In this chapter, we examine the possibility of endowing W(G) with the structure of an algebraic group in such a way that G becomes a strict W(G)-variety. The example of a toroid of dimension greater than 1 shows that this is not always possible. However, good
openaire   +4 more sources

The Group of Automorphisms of the Pentablock [PDF]

open access: yesComplex Analysis and Operator Theory, 2014
To appear in ...
Łukasz Kosiński, Łukasz Kosiński
openaire   +4 more sources

Ree groups as automorphism groups of block designs

open access: yesExamples and Counterexamples
A recent classification of flag-transitive 2-designs with parameters (v,k,λ) whose replication number r is coprime to λ gives rise to eight possible infinite families of 2-designs, some of which are with new parameters.
Ashraf Daneshkhah
doaj   +1 more source

The automorphism group of accessible groups [PDF]

open access: yesJournal of the London Mathematical Society, 2011
18 pages, 3 figures.
openaire   +3 more sources

Automorphism group of certain power graphs of finite groups

open access: yesElectronic Journal of Graph Theory and Applications, 2017
The power graph $\mathcal{P}(G)$ of a group $G$ is the graphwith group elements as vertex set and two elements areadjacent if one is a power of the other. The aim of this paper is to compute the automorphism group of the power graph of several well-known
Ali Reza Ashrafi   +2 more
doaj   +1 more source

Automorphisms of groups

open access: yesJournal of Algebra, 2007
AbstractThe main purpose of the present paper is to give an explicit description of the Wells map of a given group extension to the case of automorphisms acting trivially on the quotient group. From this we obtain some of new necessary and sufficient conditions for an automorphism of a normal subgroup of a group to extend to the group itself, with ...
openaire   +2 more sources

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