Results 71 to 80 of about 163,882 (275)
The Tits alternative for the automorphism group of a free product [PDF]
Inventiones Mathematicae, 2014 Let $G=G_1\ast\dots\ast G_k\ast F$ be a countable group which splits as a free product, where all groups $G_i$ are freely indecomposable and not isomorphic to $\mathbb{Z}$, and $F$ is a finitely generated free group. If for all $i\in\{1,\dots,k\}$, both $
Camille Horbez
semanticscholar +1 more source
Reversible skew laurent polynomial rings and deformations of poisson automorphisms [PDF]
, 2009 A skew Laurent polynomial ring S = R[x(+/- 1); alpha] is reversible if it has a reversing automorphism, that is, an automorphism theta of period 2 that transposes x and x(-1) and restricts to an automorphism gamma of R with gamma = gamma(-1).
DAVID A. JORDAN +7 more
core +2 more sources
Some Classification Theorems and Endomorphisms in New Classes
Mathematics, 2023 Let ℧ be a prime ring of char(℧) ≠2 with its center Z. This article introduces new classes of endomorphisms and investigates how they relate to antiautomorphisms of prime rings and the commutativity of prime rings.
Hafedh Alnoghashi +4 more
doaj +1 more source
Local automorphisms of finite dimensional simple Lie algebras
, 2018 Let ${\mathfrak g}$ be a finite dimensional simple Lie algebra over an algebraically closed field $K$ of characteristic $0$. A linear map $\varphi:{\mathfrak g}\to {\mathfrak g}$ is called a local automorphism if for every $x$ in ${\mathfrak g}$ there is
Costantini, Mauro
core +1 more source
Nakayama automorphism and applications [PDF]
, 2014 Nakayama automorphism is used to study group actions and Hopf algebra actions on Artin-Schelter regular algebras of global dimension three.
Jia-Feng Lu, Xuefeng Mao, James J. Zhang
semanticscholar +1 more source
Physics Letters B, 2015 14 pages; More phenomenological and simplified published ...
openaire +3 more sources
Endomorphisms of the Toeplitz algebra
Учёные записки Казанского университета: Серия Физико-математические науки, 2023 This article describes all injective endomorphisms of the classical Toeplitz algebra. Their connection with endomorphisms of the algebra of continuous functions on the unit circle and with coverings over the unit circle was considered.
S. A. Grigoryan, A. Yu. Kuznetsova
doaj +1 more source
Symmetric 2‐( 35 , 17 , 8 ) $(35,17,8)$ Designs With an Automorphism of Order 2
Journal of Combinatorial Designs, EarlyView.ABSTRACT The largest prime p $p$ that can be the order of an automorphism of a 2‐( 35 , 17 , 8 ) $(35,17,8)$ design is p = 17 $p=17$, and all 2‐( 35 , 17 , 8 ) $(35,17,8)$ designs with an automorphism of order 17 were classified by Tonchev. The symmetric 2‐( 35 , 17 , 8 ) $(35,17,8)$ designs with automorphisms of an odd prime order p < 17 $p\lt 17 ...
Sanja Rukavina, Vladimir D. Tonchev
wiley +1 more source
Monotonic functions in Bianchi models: Why they exist and how to find them
, 2009 All rigorous and detailed dynamical results in Bianchi cosmology rest upon the existence of a hierarchical structure of conserved quantities and monotonic functions.
Ashtekar A +20 more
core +1 more source
Number of Subgraphs and Their Converses in Tournaments and New Digraph Polynomials
Journal of Graph Theory, EarlyView.ABSTRACT An oriented graph D $D$ is converse invariant if, for any tournament T $T$, the number of copies of D $D$ in T $T$ is equal to that of its converse −D $-D$. El Sahili and Ghazo Hanna [J. Graph Theory 102 (2023), 684‐701] showed that any oriented graph D $D$ with maximum degree at most 2 is converse invariant.
Jiangdong Ai +4 more
wiley +1 more source