Results 11 to 20 of about 506 (162)

Inertial properties in groups [PDF]

open access: yesInternational Journal of Group Theory, 2018
‎‎Let $G$ be a group and $p$ be an endomorphism of $G$‎. ‎A subgroup $H$ of $G$ is called $p$-inert if $H^pcap H$ has finite index in the image $H^p$‎. ‎The subgroups that are $p$-inert for all inner automorphisms of $G$ are widely known and studied in ...
Ulderico Dardano   +2 more
doaj   +1 more source

Nonstandard Analysis, Deformation Quantization and Some Logical Aspects of (Non)Commutative Algebraic Geometry

open access: yesMathematics, 2020
This paper surveys results related to well-known works of B. Plotkin and V. Remeslennikov on the edge of algebra, logic and geometry. We start from a brief review of the paper and motivations. The first sections deal with model theory.
Alexei Kanel-Belov   +6 more
doaj   +1 more source

Automorphisms of partial endomorphism semigroups [PDF]

open access: yesPublicationes Mathematicae Debrecen, 2011
In this paper we propose a general recipe for calculating the automorphism groups of semigroups consisting of partial endomorphisms of relational structures over a finite set with a single m-ary relation for any m E N. We use this recipe to determine the automorphism groups of the following semigroups: the full transformation semigroup, the partial ...
JOAO ARAUJO   +4 more
openaire   +1 more source

Orbit structure and (reversing) symmetries of toral endomorphisms on rational lattices [PDF]

open access: yes, 2012
Baake M, Neumärker N. Orbit structure and (reversing) symmetries of toral endomorphisms on rational lattices. Discrete and continuous dynamical systems A.
Neumärker, Natascha, Baake, Michael
core   +1 more source

AUTOMORPHISMS OF THE ENDOMORPHISM SEMIGROUP OF A FREE ASSOCIATIVE ALGEBRA [PDF]

open access: yesInternational Journal of Algebra and Computation, 2007
Let [Formula: see text] be the variety of associative algebras over a field K and A = K 〈x1,…, xn〉 be a free associative algebra in the variety [Formula: see text] freely generated by a set X = {x1,…, xn}, End A the semigroup of endomorphisms of A, and Aut End A the group of automorphisms of the semigroup End A.
Alexei Belov-Kanel   +2 more
openaire   +2 more sources

Semilattices with a group of automorphisms [PDF]

open access: yes, 1997
We investigate semilattices expanded by a group F of automorphisms acting as new unary basic operations. We describe up to isomorphism all simple algebras of this kind in case that F is commutative.
Maróti, Miklós
core   +1 more source

Endomorphisms of graph algebras [PDF]

open access: yes, 2012
We initiate a systematic investigation of endomorphisms of graph C*-algebras C* (E), extending several known results on endomorphisms of the Cuntz algebras O-n.
CONTI, ROBERTO   +7 more
core   +1 more source

Eventually Periodic Points of Infra-Nil Endomorphisms [PDF]

open access: yes, 2010
Hyperbolic toral automorphisms provide important examples of chaotic dynamical systems. Generalizing automorphisms on tori, we study (infra-)nil endomorphisms defined on (infra-)nilmanifolds.
Lee JongBum, Kim HyunJung, Ha KuYong
core   +2 more sources

Localized endomorphisms of graph algebras [PDF]

open access: yes, 2011
Endomorphisms of graph C*-algebras are investigated. A combinatorial ap- proach to analysis of permutative endomorphisms is developed. Then invertibility criteria for localized endomorphisms are given.
Conti, Roberto   +2 more
core   +1 more source

The Bergman property for semigroups [PDF]

open access: yes, 2009
In this article, we study the Bergman property for semigroups and the associated notions of cofinality and strong cofinality. A large part of the paper is devoted to determining when the Bergman property, and the values of the cofinality and strong ...
Ruskuc, N.   +7 more
core   +1 more source

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