Results 1 to 10 of about 9,280 (92)

On the ideal structure of the semigroup of closed subsets of a topological semigroup [PDF]

open access: bronzeProceedings of the Edinburgh Mathematical Society, 1985
Among the many semigroups which can be derived from a given compact (jointly continuous) semigroup S is the semigroup 2s consisting of its non-empty compact subsets; the product is the usual one defined by the rule EF = {xy:xεE, yεF}. The Vietoris or finite topology on 2s (in which a base for the open sets is obtained by taking all sets of the form ...
Baker, J. W.   +2 more
openaire   +3 more sources

The continuity of the inversion and the structure of maximal subgroups in countably compact topological semigroups [PDF]

open access: greenActa Mathematica Hungarica, 2009
In this paper we search for conditions on a countably compact (pseudo-compact) topological semigroup under which: (i) each maximal subgroup $H(e)$ in $S$ is a (closed) topological subgroup in $S$; (ii) the Clifford part $H(S)$(i.e. the union of all maximal subgroups) of the semigroup $S$ is a closed subset in $S$; (iii) the inversion $\operatorname{inv}
Gutik, Oleg   +2 more
openaire   +6 more sources

On locally compact semitopological O-bisimple inverse ω-semigroups

open access: yesTopological Algebra and its Applications, 2018
We describe the structure of Hausdorff locally compact semitopological O-bisimple inverse ω- semigroups with compact maximal subgroups. In particular, we show that a Hausdorff locally compact semitopological O-bisimple inverse ω-semigroup with a compact ...
Gutik Oleg
doaj   +5 more sources

A topological semigroup structure on the space of actions modulo weak equivalence [PDF]

open access: green, 2015
We introduce a topology on the space of actions modulo weak equivalence finer than the one previously studied in the literature. We show that the product of actions is a continuous operation with respect to this topology, so that the space of actions modulo weak equivalence becomes a topological semigroup.
Peter Burton
openaire   +3 more sources

The structure of limit measures and their supports on topological semigroups

open access: closedSemigroup Forum, 1996
Let \((X_n)\) be a sequence of independent random variables taking values in a topological semigroup \(S\). Let the probability measure \(\mu_n\) be the distribution of \(X_n\). The paper aims at determining conditions under which the non-homogeneous random walk \(X_{k + 1} X_{k + 2} \cdots X_n\) converges in distribution for all \(k \geq 0\). In terms
Beintema, M., Budzban, G.
openaire   +3 more sources

On the topological structure of a finitely generated semigroup of matrices

open access: closedSemigroup Forum, 1988
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hing Leung
openaire   +2 more sources

The structure of topological semigroups—revisited [PDF]

open access: bronzeBulletin of the American Mathematical Society, 1966
Paul S. Mostert
openaire   +4 more sources

The structure of topological semigroups [PDF]

open access: diamondBulletin of the American Mathematical Society, 1955
A. D. Wallace
openaire   +3 more sources

(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
doaj   +1 more source

Topological properties of C0 $C^{0}$-solution set for impulsive evolution inclusions

open access: yesBoundary Value Problems, 2018
In this paper, we study the topological properties to a C0 $C^{0}$-solution set of impulsive evolution inclusions. The definition of C0 $C^{0}$-solutions for impulsive functional evolution inclusions is introduced.
Lu Zhang, Yong Zhou, Bashir Ahmad
doaj   +1 more source

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