Results 111 to 120 of about 24,881 (221)

Smarandache Fuzzy Algebra [PDF]

open access: yes, 2003
groupoid semi group semigroup group loop group groupoid semigroup loop semi group group ...
Vasantha, Kandasamy   +2 more
core   +1 more source

On fuzzy points in semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We consider the semigroup S¯ of the fuzzy points of a semigroup S, and discuss the relation between the fuzzy interior ideals and the subsets of S¯ in an (intra-regular) semigroup S.
Kyung Ho Kim
doaj   +1 more source

Semigroups of multipliers associated with semigroups of operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
Let G G be an infinite compact group with dual object
openaire   +2 more sources

Green index in semigroups : generators, presentations and automatic structures [PDF]

open access: yes, 2012
The Green index of a subsemigroup T of a semigroup S is given by counting strong orbits in the complement S n T under the natural actions of T on S via right and left multiplication.
Ruskuc, Nik   +5 more
core   +1 more source

Modified Whyburn semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
Let f:X→Y be a continuous semigroup homomorphism. Conditions are given which will ensure that the semigroup X∪Y is a topological semigroup, when the modified Whyburn topology is placed on X∪Y.
Beth Borel Reynolds, Victor Schneider
doaj   +1 more source

Extensions of semigroups and morphisms of semigroup $C^*$-algebras

open access: yesSibirskii matematicheskii zhurnal, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

An Application of the Natural Partial Order Relation on the Generalized Semigroup of Transformation With Invariant Set

open access: yesJournal of Mathematics
Let X be a nonempty set and TX be the full transformation semigroup on X. For ∅≠Y⊆X, the semigroup of all transformations that leave Y invariant in TX is denoted as SX,Y=f∈TX:fY⊆Y.
Meiqing Qin, Chaoxin Wang, Chuanwen Yu
doaj   +1 more source

Recurrency on the Space of Hilbert-Schmidt Operators

open access: yesمجلة بغداد للعلوم
In this paper, it is proved that if a C0-semigroup is chaotic, hypermixing or supermixing, then the related left multiplication C0-semigroup on the space of Hilbert-Schmidt operators is recurrent if and only if it is hypercyclic. Also, it is stated that
Mansooreh Moosapoor
doaj   +1 more source

A stability theorem for convergence of a lyapounov function along trajectories of nonexpansive semigroups

open access: yesElectronic Journal of Differential Equations, 2006
It is known that a regularly Lyapounov function for a semigroup of contractions on a Hilbert space converges to its minimum along the trajectories of the semigroup.
Renu Choudhary
doaj  

A semigroup approach to the Gnedenko system with single vacation of a repairman

open access: yes, 2012
We investigate the Gnedenko system with one repairman who can take vacations. Our main focus is on the time asymptotic behaviour of the system. Using C 0-semigroup theory for linear operators we first prove the well-posedness of the system and the ...
Haji, Abdukerim, Radl, Agnes
core   +1 more source

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