Results 1 to 10 of about 12,736,939 (290)

On automorphism groups of Toeplitz subshifts [PDF]

open access: yesDiscrete Analysis, 2017
On automorphism groups of Toeplitz subshifts, Discrete Analysis 2017:11, 19 pp. A discrete dynamical system is a space $X$ with some kind of structure, together with a map $\sigma\colon X\to X$ that preserves the structure.
Sebastian Donoso   +3 more
doaj   +4 more sources

FINITE $p$-GROUPS WITH SMALL AUTOMORPHISM GROUP [PDF]

open access: yesForum of Mathematics, Sigma, 2015
For each prime $p$ we construct a family $\{G_{i}\}$ of finite $p$-groups such that $|\text{Aut}(G_{i})|/|G_{i}|$ tends to zero as $i$ tends to infinity.
JON GONZÁLEZ-SÁNCHEZ   +1 more
doaj   +4 more sources

Rigid automorphisms of linking systems

open access: yesForum of Mathematics, Sigma, 2021
A rigid automorphism of a linking system is an automorphism that restricts to the identity on the Sylow subgroup. A rigid inner automorphism is conjugation by an element in the center of the Sylow subgroup.
George Glauberman, Justin Lynd
doaj   +1 more source

On a relation between GAG codes and AG codes

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
In this paper, we first give a relationship between generalized algebraic geometry codes (GAG codes) and algebraic geometry codes (AG codes). More precisely, we show that a GAG code is contained (up to isomorphism) in a suitable AG code.
Şenel Engin, Öke Figen
doaj   +1 more source

Automorphism groups of some variants of lattices

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
In this paper we consider variants of the power set and the lattice of subspaces and study automorphism groups of these variants. We obtain irreducible generating sets for variants of subsets of a finite set lattice and subspaces of a finite vector space
O.G. Ganyushkin, O.O. Desiateryk
doaj   +1 more source

On some projective triply-even binary codes invariant under the Conway group ${\rm Co}_1$ [PDF]

open access: yesInternational Journal of Group Theory, 2022
A binary triply-even $[98280, 25, 47104]_2$ code invariant under the sporadic simple group ${\rm Co}_1$ is constructed by adjoining the all-ones vector to the faithful and absolutely irreducible 24-dimensional code of length 98280. Using the action of ${\
Bernardo Rodrigues
doaj   +1 more source

AUTOMORPHISM GROUPS OF QUANDLES [PDF]

open access: yesJournal of Algebra and Its Applications, 2012
We prove that the automorphism group of the dihedral quandle with n elements is isomorphic to the affine group of the integers mod n, and also obtain the inner automorphism group of this quandle. In [B. Ho and S. Nelson, Matrices and finite quandles, Homology Homotopy Appl.7(1) (2005) 197–208.], automorphism groups of quandles (up to isomorphisms) of ...
Elhamdadi, Mohamed   +2 more
openaire   +4 more sources

Semi-automorphisms of groups [PDF]

open access: yesProceedings of the American Mathematical Society, 1958
A semi-automorphism of a group G is a 1-1 mapping, X, of G onto itself such that 0(aba) =4(a)o(b)4(a) for all a, bEG. The nature of such mappings, in the special cases when G is the symmetric or alternating group (finite or infinite) and in a few other examples, was determined by Dinkines [I], who showed they must be automorphisms or anti-automorphisms.
Herstein, I. N., Ruchte, M. F.
openaire   +2 more sources

Automorphism group schemes of bielliptic and quasi-bielliptic surfaces [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2022
Bielliptic and quasi-bielliptic surfaces form one of the four classes of minimal smooth projective surfaces of Kodaira dimension $0$. In this article, we determine the automorphism schemes of these surfaces over algebraically closed fields of arbitrary ...
Gebhard Martin
doaj   +1 more source

The Groups of Isometries of Metric Spaces over Vector Groups

open access: yesMathematics, 2022
In this paper, we consider the groups of isometries of metric spaces arising from finitely generated additive abelian groups. Let A be a finitely generated additive abelian group.
Sheng Bau, Yiming Lei
doaj   +1 more source

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