Results 41 to 50 of about 175 (103)
An amenability property of algebras of functions on semidirect products of semigroups
International Journal of Mathematics and Mathematical Sciences, Volume 6, Issue 2, Page 297-305, 1983., 1982 Let S1 and S2 be semitopological semigroups, S1 τ S2 a semidirect product. An amenability property is established for algebras of functions on S1 τ S2. This result is used to decompose the kernel of the weakly almost periodic compactification of S1 τ S2 into a semidirect product.
Bao-Ting Lerner
wiley +1 more source
Conditionally compact semitopological one-parameter inverse semigroups of partial isometries
, 1978 The algebraic structure of one-parameter inverse semigroups has been completely described. Furthermore, if B is the bicyclic semigroup and if B is contained in any semitopological semigroup, the relative topology on B is discrete. We show that if F is an
M. O. Bertman
core +1 more source
A CONSTRUCTION OF A SEMITOPOLOGICAL SEMIGROUP OF SOFT ULTRAFILTERS
IUG Journal of Natural Studies, 2021 Abstract. In this paper, we construct a semitopological semigroup consisting entirely of soft ultrafilters.
openaire +2 more sources
Central Sets Theorem Near of an Idempotent in Wap-Compactification
, 2023 A small part of real line which is very close to zero has rich combinatorial properties. The aim of this paper is to express and then prove some locally combinatorial concepts near a virtual idempotent by considering the wap-compactification of a ...
Mohammad Akbari Tootkaboni +2 more
core +1 more source
Joint continuity in semitopological semigroups
Illinois Journal of Mathematics, 1974 The principal goal of this paper is squeezing out points of joint continuity from a separately continuous action of a semigroup on a topological space. The paper itself is a variation on a theme by R.Ellis, who showed that separate continuity on a locally compact Hausdorff group implies joint continuity for the multiplication function $[6]$.
openaire +3 more sources
Structure of the Eberlein compactification of locally compact Heisenberg type group ZxTxT
, 2019 Given a locally compact group G, the Eberlein compactification G(e) is the spectrum of the uniform closure of the Fourier-Stieltjes algebra B(G). Hence, it is the semigroup compactification related to the unitary representations of G.
Elgun, Elcim
core +1 more source
On a semitopological polycyclic monoid
, 2016 We study algebraic structure of the λ-polycyclic monoid Pλ and its topologizations. We show that the λ-polycyclic monoid for an infinite cardinal λ≥2 has similar algebraic properties so has the polycyclic monoid Pn with finitely many n≥2 generators.
Gutik, O., Bardyla, S.
core +1 more source
On a semitopological α-bicyclic semigroup
, 2017 Bardyla S. On a semitopological α-bicyclic semigroup / S. Bardyla // Algebraic and geometric methods of analysis: book of abstr. the Intern. sci. conf., Odessa, 31 May – 05 June 2017 / [Odesa Nat. Acad. of Food Technologies et al.]. – Odessa, 2017.
Bardyla, S.
core
Amenability, fixed point properties and Fourier algebras of semitopological semigroups
, 2021 In this thesis, we are interested in the fixed point properties of actions of amenable semitopological semigroups and the Fourier algebra defined on topological groups and semigroups.
, Bui Ngoc Muoi
core
Bregman nonexpansive type actions of semitopological semigroups
, 2020 Let $S$ be a semitopological semigroup, and let $C$ be a nonempty closed convex subset of a reflexive Banach space. Under some amenability conditions on $S$, we provide existence results of fixed points for several Bregman nonexpansive type actions $S\times C\to C$, $(s,x)\mapsto T_s x$, of $S$ on $C$.
Muoi, Bui Ngoc, Wong, Ngai-Ching
openaire +2 more sources