Results 41 to 50 of about 687 (157)

Topological and metric entropy for group and semigroup actions

open access: yesTopological Algebra and its Applications, 2019
It is well-known that the classical definition of topological entropy for group and semigroup actions is frequently zero in some rather interesting situations, e.g. smooth actions of ℤk+ (k >1) on manifolds.
Stoyanov Luchezar
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Extending binary operations to funtor-spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2009
Given a continuous monadic functor $T:CompoComp$ in thecategory of compacta and a discrete topological semigroup $X$ weextend the semigroup operation $varphi:Ximes Xo X$ to aright-topological semigroup operation $Phi:Teta Ximes TetaXo Teta X,$ whose ...
T. O. Banakh, V. M. Gavrylkiv
doaj  

Ornstein-Uhlenbeck Semigroup on the dual space of Gelfand-Shilov Spaces of Beurling type

open access: yesBoletim da Sociedade Paranaense de Matemática, 2020
We use a previously obtained topological characterization of Gelfand-Shilov spaces of Beurling type to characterize its dual  using Riesz representation theorem.
Hamed M. Obiedat, Lloyd E. Moyo
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On the S-Invariance Property for S-Flows

open access: yesAbstract and Applied Analysis, 2010
We define an equivalence relation on a topological space which is acted by topological monoid S as a transformation semigroup. Then, we give some results about the S-invariant classes for this relation.
Amin Saif, Adem Kılıçman
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C0-continuity of the Fröbenius-Perron semigroup

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We consider the Fröbenius-Perron semigroup of linear operators associated to a semidynamical system defined in a topological space X endowed with a finite or a σ-finite regular measure.
Andrés Navas, Sergio Plaza
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On continuity of homomorphisms between topological Clifford semigroups

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2014
Generalizing an old result of Bowman we prove that a homomorphism $f:X\to Y$ between topological Clifford semigroups is continuous if • the idempotent band $E_X=\{x\in X:xx=x\}$ of $X$ is a $V$-semilattice; • the topological Clifford semigroup
I. Pastukhova
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Semigroup Actions on Intuitionistic Fuzzy Metric Spaces

open access: yesAdvances in Fuzzy Systems, 2009
This paper investigates the dynamical systems in the context of topological semigroup actions on intuitionistic fuzzy metric spaces. We give some concepts such as topological transitivity, point transitivity, and densely point transitivity for such ...
Yaoyao Lan, Qingguo Li
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Existence of a utility on a topological semigroup [PDF]

open access: yesTheory and Decision, 1976
This paper presents a comprehensive mathematical framework in which a unified treatment of additive and expected utility can be given. For achieving this, elaborate structural assumptions, characterizing a simply ordered, topological semigroup, have to be established in order to construct an isomorphism with the additive group of real numbers.
openaire   +3 more sources

On the closure of the extended bicyclic semigroup

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2011
In the paper we study the semigroup $mathscr{C}_{mathbb{Z}}$which is a generalization of the bicyclic semigroup. We describemain algebraic properties of the semigroup$mathscr{C}_{mathbb{Z}}$ and prove that every non-trivialcongruence $mathfrak{C}$ on the
I. R. Fihel, O. V. Gutik
doaj  

(L)-Semigroup Sums

open access: yesAxioms, 2018
An (L)-semigroup S is a compact n-manifold with connected boundary B together with a monoid structure on S such that B is a subsemigroup of S. The sum S + T of two (L)-semigroups S and T having boundary B is the quotient space obtained from the ...
John R. Martin
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