Results 21 to 30 of about 80,953 (208)

Representation of groups by automorphisms of normal topological spaces [PDF]

open access: yesКомпьютерные исследования и моделирование, 2009
The famous fact [3, 5] of existence of an exact representation for any finite group in the form of the full automorphism group of a finite graph was generalize in [4].
A. V. Koganov
doaj   +1 more source

Conjugacy classes of affine automorphisms of K^n and linear automorphisms of P^n in the Cremona groups [PDF]

open access: yes, 2006
We describe the conjugacy classes of affine automorphisms in the group $Aut(n,\K)$ (respectively $Bir(\K^n)$) of automorphisms (respectively of birational maps) of $\K^n$.
Blanc, Jérémy
core   +4 more sources

Analytic Automorphisms and Transitivity of Analytic Mappings

open access: yesMathematics, 2020
In this paper, we investigate analytic automorphisms of complex topological vector spaces and their applications to linear and nonlinear transitive operators.
Zoriana Novosad, Andriy Zagorodnyuk
doaj   +1 more source

Braiding groups of automorphisms and almost-automorphisms of trees

open access: yesCanadian Journal of Mathematics, 2023
AbstractWe introduce “braided” versions of self-similar groups and Röver–Nekrashevych groups, and study their finiteness properties. This generalizes work of Aroca and Cumplido, and the first author and Wu, who considered the case when the self-similar groups are what we call “self-identical.” In particular, we use a braided version of the Grigorchuk ...
Rachel Skipper, Matthew C. B. Zaremsky
openaire   +3 more sources

Extremal Binary and Ternary Codes of Length 60 with an Automorphism of Order 29 and a Generalization

open access: yesMathematics, 2022
In this paper, all extremal Type I and Type III codes of length 60 with an automorphism of order 29 are classified up to equivalence. In both cases, it has been proven that there are three inequivalent codes.
Stefka Bouyuklieva   +2 more
doaj   +1 more source

On automorphisms of biproducts [PDF]

open access: yesCommunications in Algebra, 2016
We study certain subgroups of the full group of Hopf algebra automorphisms of a biproduct. In the process interesting subgroups of certain permutation groups come into play.
openaire   +2 more sources

A unified model of the standard genetic code [PDF]

open access: yesRoyal Society Open Science, 2017
The Rodin–Ohno (RO) and the Delarue models divide the table of the genetic code into two classes of aminoacyl-tRNA synthetases (aaRSs I and II) with recognition from the minor or major groove sides of the tRNA acceptor stem, respectively.
Marco V. José   +2 more
doaj   +1 more source

Labeled Trees and Localized Automorphisms of the Cuntz Algebras [PDF]

open access: yes, 2008
We initiate a detailed and systematic study of automorphisms of the Cuntz algebras $\O_n$ which preserve both the diagonal and the core $UHF$-subalgebra.
Conti, Roberto, Szymanski, Wojciech
core   +1 more source

Automophisms of Nil-Triangular Subrings of Algebras Chevalley Type $G_2$ Over Integral Domain. I

open access: yesИзвестия Иркутского государственного университета: Серия "Математика"
Let $N\Phi(K)$ be the nil-triangular subalgebra of the Chevalley algebra over an associative commutative ring $K$ with the identity associated with a root system $\Phi$.
A. V. Kazakova
doaj   +1 more source

On the operator equation α+α−1=β+β−1

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
Let α,β be ∗-automorphisms of a von Neumann algebra M satisfying the operator equation α+α−1=β+β−1. In this paper we use new techniques (which are useful in noncommutative situations as well) to provide alternate proofs of the results:- If α,β commute ...
A. B. Thaheem
doaj   +1 more source

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