Results 91 to 100 of about 16,532 (225)

Right-topological semigroup operations on inclusion hyperspaces [PDF]

, 2008
Volodymyr Gavrylkiv
openalex   +1 more source

The hull-kernel topology on prime ideals in ordered semigroups

Open Mathematics
The aim of this study is to develop the theory of prime ideals in ordered semigroups. First, to ensure the existence of prime ideals, we study a class of ordered semigroups which will be denoted by SIP{{\mathbb{S}}}_{IP}.
Wu Huanrong, Zhang Huarong
doaj   +1 more source

Indicator sequences and indicator topologies of Fort transformation groups

, 2017
In the following text we prove that there exists a Fort transformation group with indicator sequence $(p_0,\ldots,p_n)$ if and only if $0=p_0\leq p_1\leq\cdots\leq p_n=1$, moreover we characterize all possible indicator topological spaces of Fort ...
Ebrahimifar, Fatemeh, Shirazi, Fatemah Ayatollah Zadeh   +1 more
core  

Embedding the bicyclic semigroup into countably compact topological semigroups [PDF]

, 2010
Тарас Банах, Svetlana Dimitrova, Олег Гутік   +2 more
openalex   +1 more source

An Extension of a result of Csiszar

International Journal of Mathematics and Mathematical Sciences, 1986
We extend the results of Csiszar (Z. Wahr. 5(1966) 279-295) to a topological semigroup S. Let μ be a measure defined on S. We consider the value of α=supKcompactlimn→∞supx∈Sμn(Kx−1). First. we show that the value of α is either zero or one.
P. B. Cerrito
doaj   +1 more source

Sombor topological indices for different nanostructures. [PDF]

Heliyon, 2023
Imran M, Ismail R, Azeem M, Jamil MK, Al-Sabri EHA.   +4 more
europepmc   +1 more source

Left invariant measure in topological semigroups [PDF]

, 1975
James Chew
openalex   +1 more source

opological monoids of almost monotone injective co-finite partial selfmaps of positive integers

Karpatsʹkì Matematičnì Publìkacìï, 2010
In this paper we study the semigroup$mathscr{I}_{infty}^{,Rsh!!!earrow}(mathbb{N})$ of partialco-finite almost monotone bijective transformations of the set ofpositive integers $mathbb{N}$.
Chuchman I.Ya., Gutik O.V.
doaj  

The largest proper congruence on S(X)

International Journal of Mathematics and Mathematical Sciences, 1984
S(X) denotes the semigroup of all continuous selfmaps of the topological space X. In this paper, we find, for many spaces X, necessary and sufficient conditions for a certain type of congruence to be the largest proper congruence on S(X).
K. D. Magill
doaj   +1 more source

K-Theory for Semigroup C*-Algebras and Partial Crossed Products. [PDF]

Commun Math Phys, 2022
Li X.
europepmc   +1 more source