Results 41 to 50 of about 118,465 (290)

Automorphism Groups and Isometries for Cyclic Orbit Codes [PDF]

open access: yesAdvances in Mathematics of Communications, 2021
We study orbit codes in the field extension \begin{document}$ \mathbb{F}_{q^n} $\end{document}. First we show that the automorphism group of a cyclic orbit code is contained in the normalizer of the Singer subgroup if the orbit is generated by a subspace
H. Gluesing-Luerssen, Hunter Lehmann
semanticscholar   +1 more source

Hilbert schemes of lines and conics and automorphism groups of Fano threefolds [PDF]

open access: yes, 2016
We discuss various results on Hilbert schemes of lines and conics and automorphism groups of smooth Fano threefolds of Picard rank 1. Besides a general review of facts well known to experts, the paper contains some new results, for instance, we give a ...
A. Kuznetsov, Yuri Prokhorov, C. Shramov
semanticscholar   +1 more source

Automorphism groups of Inoue and Kodaira surfaces [PDF]

open access: yesAsian Journal of Mathematics, 2018
We prove that automorphism groups of Inoue and primary Kodaira surfaces are Jordan.
Yuri Prokhorov, C. Shramov
semanticscholar   +1 more source

The description of the automorphism groups of finite-dimensional cyclic Leibniz algebras

open access: yesДоповiдi Нацiональної академiї наук України, 2022
In the study of Leibniz algebras, the information about their automorphisms (as well as about endomorphisms, derivations, etc.) is very useful. We describe the automorphism groups of finite-dimensional cyclic Leibniz algebras. In particular, we consider
L.A. Kurdachenko   +2 more
doaj   +1 more source

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

Relative automorphism groups of right‐angled Artin groups [PDF]

open access: yesJournal of Topology, 2017
We study the outer automorphism group of a right‐angled Artin group AΓ with finite defining graph Γ . We construct a subnormal series for Out (AΓ) such that each consecutive quotient is either finite, free‐abelian, GL (n,Z) or a Fouxe‐Rabinovitch group ...
M. Day, Richard D. Wade
semanticscholar   +1 more source

Calculating the symmetry of hexamethylcyclohexane

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2007
An Euclidean graph associated with a molecule is defined by a weighted graph with adjacency matrix. Balasubramanian (1995) computed the Euclidean graphs and their automorphism groups for benzene, eclipsed and staggered forms of ethane, and eclipsed and ...
Ahmad Gholami   +2 more
doaj   +1 more source

Automorphism groups of finite topological rank [PDF]

open access: yesTransactions of the American Mathematical Society, 2017
We offer a criterion for showing that the automorphism group of an ultrahomogeneous structure is topologically 2-generated and even has a cyclically dense conjugacy class.
Itay Kaplan, Pierre Simon
semanticscholar   +1 more source

On the automorphism groups of relatively free groups of infinite rank: a survey

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
The paper is intended to be a survey on some topics within the framework of automorphisms of a relatively free groups of infinite rank. We discuss such properties as tameness, primitivity, small index, Bergman property, and so on.
V.A. Roman’kov
doaj   +1 more source

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

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