Results 41 to 50 of about 652,533 (244)
Reductive compactifications of semitopological semigroups
International Journal of Mathematics and Mathematical Sciences, 2003 We consider the enveloping semigroup of a flow generated by the action of a semitopological semigroup on any of its semigroup compactifications and explore the possibility of its being one of the known semigroup compactifications again.
Abdolmajid Fattahi +2 more
doaj +1 more source
The Corona Factorization property, Stability, and the Cuntz semigroup of a C*-algebra [PDF]
, 2009 The Corona Factorization Property, originally invented to study extensions of C*-algebras, conveys essential information about the intrinsic structure of the C*-algebras.
E. Ortega, F. Perera, M. Rørdam
semanticscholar +1 more source
The Relationship between Two Involutive Semigroups S and ST Is Defined by a Left Multiplier T
Journal of Function Spaces, 2014 Let S be a semigroup with a left multiplier T on S. There exists a new semigroup ST, which depends on S and T, which has the same underlying space as S. We study the question of involutions on ST and a Banach algebra AT.
S. M. Mohammadi, J. Laali
doaj +1 more source
The Cuntz Comparison in the Standard C*-Algebra
Abstract and Applied Analysis, 2014 The Cuntz comparison, introduced by Cuntz in early 1978, associates each C*-algebra with an abelian semigroup which is an invariant for the classification of the nuclear C*-algebras and called the Cuntz semigroup.
Xiaochun Fang +2 more
doaj +1 more source
Cubic Bipolar Fuzzy Ideals with Thresholds (α, β), ( ω ,ϑ) of a Semigroup in KU-algebra
Ibn Al-Haitham Journal for Pure and Applied Sciences, 2022 In this paper, we introduce the concept of cubic bipolar-fuzzy ideals with thresholds (α,β),(ω,ϑ) of a semigroup in KU-algebra as a generalization of sets and in short (CBF). Firstly, a (CBF) sub-KU-semigroup with a threshold (α,β),(ω,ϑ) and some results
Omniat Adnan Hasan +1 more
doaj +1 more source
Stability in the Cuntz semigroup of a commutative C*‐algebra [PDF]
, 2006 Let A be a C*‐algebra. The Cuntz semigroup W(A) is an analogue for positive elements of the semigroup V(A) of Murray‐von Neumann equivalence classes of projections in matrices over A. We prove stability theorems for the Cuntz semigroup of a commutative C*
Andrew S. Toms
semanticscholar +1 more source
Non-relativistic three-dimensional supergravity theories and semigroup expansion method [PDF]
Journal of High Energy Physics, 2020 In this work we present an alternative method to construct diverse non-relativistic Chern-Simons supergravity theories in three spacetime dimensions. To this end, we apply the Lie algebra expansion method based on semigroups to a supersymmetric extension
P. Concha +3 more
semanticscholar +1 more source
Quasiminimal distal function space and its semigroup compactification
International Journal of Mathematics and Mathematical Sciences, 1995 Quasiminimal distal function on a semitopological semigroup is introduced. The concept of right topological semigroup compactification is employed to study the algebra of quasiminimal distal functions.
R. D. Pandian
doaj +1 more source
$sigma$-Connes Amenability and Pseudo-(Connes) Amenability of Beurling Algebras [PDF]
Sahand Communications in Mathematical Analysis, 2019 In this paper, pseudo-amenability and pseudo-Connes amenability of weighted semigroup algebra $ell^1(S,omega)$ are studied. It is proved that pseudo-Connes amenability and pseudo-amenability of weighted group algebra $ell^1(G,omega)$ are the same ...
Zahra Hasanzadeh, Amin Mahmoodi
doaj +1 more source
Conjugacy classes of left ideals of Sweedler's four-dimensional algebra $ H_{4} $
AIMS Mathematics, 2022 Let $ A $ be a finite-dimensional algebra with identity over the field $ \mathbb{F} $, $ U(A) $ be the group of units of $ A $ and $ L(A) $ be the set of left ideals of $ A $. It is well known that there is an equivalence relation $ \sim $ on $ L(A) $ by
Fengxia Gao, Jialei Chen
doaj +1 more source