Results 31 to 40 of about 12,547 (197)

Right simple subsemigroups and right subgroups of compact convergence semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
Clifford and Preston (1961) showed several important characterizations of right groups. It was shown in Roy and So (1998) that, among topological semigroups, compact right simple or left cancellative semigroups are in fact right groups, and the closure ...
Phoebe Ho, Shing S. So
doaj   +1 more source

Commutative Topological Semigroups Embedded into Topological Abelian Groups

open access: yesAxioms, 2020
In this paper, we give conditions under which a commutative topological semigroup can be embedded algebraically and topologically into a compact topological Abelian group.
Julio César Hernández Arzusa
doaj   +1 more source

Topologically transitive matrix semigroups [PDF]

open access: yesOperators and Matrices, 2007
[1] R. DRNOVSEK, L. LIVSHITS, G. MACDONALD, B. MATHES, H. RADJAVI AND P. SEMRL, On transitive linear semigroups, Linear Algebra Appl., 305, 2000, 67–86. [2] F. KALSCHEUER, Die bestimmung aller stetigen fastkorper uber dem korper der rellen zahlen als grundkorper, Abh. Math. Sem. Hansische Univ. 13, 1940, 413–435. [3] H. RADJAVI AND P.
Leo Livshits   +2 more
openaire   +1 more source

TOPOLOGICAL STRUCTURAL STABILITY ON PROJECTED SPACES

open access: yesSelecciones Matemáticas, 2016
In this work we study the topological structural stability for a family of nonlinear semigroups Th(·) on Banach spaces Xh which dependent on a parameter h.
Rodiak Figueroa   +3 more
doaj   +1 more source

Sum Connectivity Index Under the Cartesian and Strong Products Graph of Monogenic Semigroup

open access: yesInternational Journal of Analysis and Applications, 2023
This field’s main feature is to implement the sum connectivity index method. This sum connectivity index method can solve the monogenic semigroups under the cartesian and strong products.
R. Rajadurai, G. Sheeja
doaj   +1 more source

On feebly compact topologies on the semilattice $\exp_n\lambda$ [PDF]

open access: yes, 2016
We study feebly compact topologies $\tau$ on the semilattice $\left(\exp_n\lambda,\cap\right)$ such that $\left(\exp_n\lambda,\tau\right)$ is a semitopological semilattice. All compact semilattice $T_1$-topologies on $\exp_n\lambda$ are described.
Gutik, Oleg, Sobol, Oleksandra
core   +1 more source

Domain theory and mirror properties in inverse semigroups [PDF]

open access: yes, 2012
Inverse semigroups are a class of semigroups whose structure induces a compatible partial order. This partial order is examined so as to establish mirror properties between an inverse semigroup and the semilattice of its idempotent elements, such as ...
Poncet, Paul
core   +3 more sources

Embedding topological semigroups in topological groups [PDF]

open access: yesSemigroup Forum, 1970
In [6] Rothman investigated the problem of embedding a topological semigroup in a topological group. He defined a concept calledProperty F and showed that Property F is a necessary and sufficient condition for embedding a commutative, cancellative topological semigroup in its group of quotients as an open subset.
openaire   +3 more sources

On countably compact 0-simple topological inverse semigroups

open access: yes, 2008
We describe the structure of 0-simple countably compact topological inverse semigroups and the structure of congruence-free countably compact topological inverse ...
Gutik, Oleg, Repovš, Dušan
core   +1 more source

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
doaj   +1 more source

Home - About - Disclaimer - Privacy