Results 121 to 130 of about 9,040,817 (231)

On central endomorphisms of a group [PDF]

open access: yesInternational Journal of Group Theory, 2015
Let Γ be a normal subgroup of the full automorphism group Aut(G) of a group G ‎, ‎and assume that Inn(G)≤Γ ‎. ‎An endomorphism σ of G is said to be {\it Γ -central} if σ induces the the identity on the factor group G/C G (Γ) ‎.
Alessio Russo
doaj  

The automorphism group of a near-ring

open access: yes, 1980
As for groups certain automorphisms of a near-ring N may be regarded as inner. The inner automorphisms of N form a normal subgroup of the automorphism group of N.
S. D. Scott
core   +1 more source

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

ON AUTOMORPHISM GROUPS OF MATRICES

open access: yesPrikladnaya diskretnaya matematika, 2010
Summary: In this paper we consider the groups of the left (right) automorphisms of matrices and their automorphism groups. Without loss of generality one can take square matrices over the ring of integers. For such a matrix, we suggest the notion of a quasiautomorphism and the correspondent notion of its quasiautomorphism group.
openaire   +2 more sources

Flux Landscape with enhanced symmetry not on SL(2, ℤ) elliptic points

open access: yesJournal of High Energy Physics
We study structures of solutions for SUSY Minkowski F-term equations on two toroidal orientifolds with h 2,1 = 1. Following our previous study [1], with fixed upper bounds of a flux D3-brane charge N flux, we obtain a whole Landscape and a distribution ...
Keiya Ishiguro   +3 more
doaj   +1 more source

𝜔! can be a nontrivial automorphism group

open access: yes, 1991
Under the axiom "there are ω 1 {\omega _1} cofinal Cohen reals," the symmetric group on ω \omega is the nontrivial automorphism group of a thin-tall superatomic Boolean algebra ...
Judith Roitman
core   +1 more source

Bounded Automorphisms of Groups

open access: yesJournal of Algebra, 1994
Let \(G\) be the fundamental group of a graph of groups (in the sense of Bass-Serre theory). Such a group has a natural length function and thus a corresponding notion of bounded subgroups and bounded automorphisms. The general result of this paper is that an automorphism of \(G\) is bounded if and only if it is induced by isomorphisms of vertex groups
openaire   +2 more sources

Eigenvalues and the stabilized automorphism group [PDF]

open access: yes
We study the stabilized automorphism group of minimal and, more generally, certain transitive dynamical systems. Our approach involves developing new algebraic tools to extract information about the rational eigenvalues of these systems from their ...
Jones-Baro, Jennifer N.   +1 more
core   +1 more source

The Automorphism Group of Finite Godel Algebras

open access: yes, 2010
We investigate the automorphism group of finite Gödel algebras, the algebraic counterpart of Gödel infinite-valued propositional logic with a finite number of variables.
Stefano Aguzzoli   +8 more
core   +1 more source

Automorphisms of graph groups

open access: yesJournal of Algebra, 1989
Given a graph \(\Gamma=(V,E)\), the graph group \(F\langle\Gamma\rangle\) is the group with presentation \(\langle V\mid [E]\rangle\), where \([E]\) denotes the set of commutators \(\{[a,b]\mid\{a,b\}\in E\}\). The graph group \(F\langle\Gamma\rangle\) is modeled to be a group analog of the graph algebra K(\(\Gamma)\) generated as a free associative ...
openaire   +2 more sources

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