Results 31 to 40 of about 11,763 (233)

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

Groups of basic automorphisms of chaotic Cartan foliations with Eresmann connection [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
The purpose of the work is to study the groups of basic automorphisms of chaotic Cartan foliations with Ehresmann connection. Cartan foliations form a category where automorphisms preserve not only the foliation, but also its transverse Cartan geometry ...
Zhukova, Nina Ivanovna   +1 more
doaj   +1 more source

Endomorphisms of Some Groupoids of Order $k+k^2$

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2020
Automorphisms and endomorphisms are actively used in various theoretical studies. In particular, the theoretical interest in the study of automorphisms is due to the possibility of representing elements of a group by automorphisms of a certain algebraic ...
A.V. Litavrin
doaj   +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   +2 more sources

Interval Valued D-Implications

open access: yesTrends in Computational and Applied Mathematics, 2009
The aim of this work is to introduce the concepts of interval Dimplicationsand automorphisms, analyzing their main properties and establishingthe relation between them.
R.H.S. Reiser   +3 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

Curves of fixed points of trace maps [PDF]

open access: yes, 2007
We study curves of fixed points for certain diffeomorphisms of ${\mathbb{R}}^3$ that are induced by automorphisms of a trace algebra. We classify these curves.
Manning, Anthony, Humphries, Stephen
core   +1 more source

Free dense subgroups of holomorphic automorphisms [PDF]

open access: yes, 2015
We show the existence of free dense subgroups, generated by two elements, in the holomorphic shear and overshear group of complex-Euclidean space and extend this result to the group of holomorphic automorphisms of Stein manifolds with the density ...
Andrist, Rafael Benedikt   +1 more
core   +1 more source

Periodic points of solenoidal automorphisms in terms of inverse limits

open access: yesApplied General Topology, 2021
In this paper, we describe the periodic points of automorphisms of a one dimensional solenoid, considering it as the inverse limit, lim←k (S 1 , γk) of a sequence (γk) of maps on the circle S 1 .
Sharan Gopal, Faiz Imam
doaj   +1 more source

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