Results 171 to 180 of about 412,232 (210)

Semigroup extensions of Abelian topological groups

Semigroup Forum, 2018
In the paper it is stated that a topological group is called \textit{absolutely closed} if it is closed in every topological group containing it as a subgroup; and a topological group is absolutely closed if and only if it is complete [\textit{D. Raikov}, Izv. Akad. Nauk SSSR, Ser. Mat. 10, 513--528 (1946; Zbl 0061.04206)]. Given a topological group $G$
Y. Zelenyuk
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Topological pressures of a factor map for free semigroup actions

Journal of difference equations and applications (Print), 2021
In this paper, we mainly study the topological pressures of finitely generated free semigroup actions on a compact metric space. By means of a factor map, we give an inequality relation for two topological pressures with a factor map of free semigroup ...
Cao Zhao, Kexiang Yang
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Topological Pressure of Free Semigroup Actions For Non-Compact Sets and Bowen’s Equation, II

Journal of Dynamics and Differential Equations, 2020
Inspired to the work of Ma and Wu (Discrete Contin Dyn Syst 31:545–557, 2011) and Climenhaga (Ergodic Theory Dyn Syst 31(4):1163–1182, 2011), we introduce the new notions of topological pressure and upper (lower) capacity topological pressure of a free ...
Qianying Xiao, Dongkui Ma
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On $$\varepsilon $$-soft topological semigroups

Soft Computing, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bahredar, A. A., Kouhestani, N.
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Note on topological ternary semigroup

, 2020
In this paper, we have discussed various topological properties of (Hausdörff) topological ternary semigroup and topological ternary group. We have proved that the Cartesian product of an arbitrary family of topological ternary semigroups is again a ...
S. Samanta, S. Jana, S. Kar
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Topological Grading of Semigroup C*-Algebras

, 2020
The paper deals with the abelian cancellative semigroups and the reduced semigroup C*-algebras. It is supposed that there exist epimorphisms from the semigroups onto the group of integers modulo n.
R. Gumerov, E. Lipacheva
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Compact Topological Inverse Semigroups

Semigroup Forum, 2000
A topological inverse semigroup is a Hausdorff topological space together with a continuous multiplication and an inversion. With every topological inverse semigroup \(S\) one can associate its band of idempotents \(E(S)\). This paper studies compact topological inverse semigroups by relating them to their band of idempotents. Next, we describe briefly
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INVARIANT MEASURES ON SEMIGROUPS AND IMBEDDING TOPOLOGICAL SEMIGROUPS IN TOPOLOGICAL GROUPS

Mathematics of the USSR-Sbornik, 1981
In this paper the case of topological semigroups that are cancellative and right reversible is considered. It is shown (Theorem 1) that the existence in such a semigroup of a left invariant measure satisfying certain conditions is equivalent to the imbeddability of some open ideal of the given semigroup as an open subsemigroup in a locally compact ...
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Embedding of Countable Topological Semigroups in Simple Countable Connected Topological Semigroups

Journal of Mathematical Sciences, 2001
The main result of the paper is as follows. An arbitrary countable topological (inverse) semigroup is topologically isomorphically embedded into a simple countable connected Hausdorff topological (inverse) semigroup with unit.
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Topological Brandt semigroups

Semigroup Forum, 2012
The author considers certain locally compact Hausdorff semi-topological Brandt semigroups \(B(G,I)\) of \(|x|\) matrix units over \(G\cup\{0\}\), where \(G\) is a locally compact Hausdorff topological group and \(I\) is an index set and studies the relation between the semigroup algebras of \(B(G,I)\) and \(I^1\)-Munn algebras over group algebras ...
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