Results 51 to 60 of about 69,338 (279)
Nuclearity of semigroup C*-algebras and the connection to amenability [PDF]
, 2012 We study C*-algebras associated with subsemigroups of groups. For a large class of such semigroups including positive cones in quasi-lattice ordered groups and left Ore semigroups, we describe the corresponding semigroup C*-algebras as C*-algebras of ...
Xin Li
semanticscholar +1 more source
Stability of Viscous Three‐Dimensional Stratified Couette Flow via Dispersion and Mixing
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT This article explores the stability of stratified Couette flow in the viscous 3d$3d$ Boussinesq equations. In this system, mixing effects arise from the shearing background, and gravity acts as a restoring force leading to dispersive internal gravity waves.
Michele Coti Zelati +2 more
wiley +1 more source
The adjoint semigroup of a $\Gamma$-semigroup
Novi Sad Journal of Mathematics, 2017 Summary: Given a \(\Gamma \)-semigroup \(S\) and a fixed \(\gamma_0 \in \Gamma \), we construct a semigroup \(\Sigma_{\gamma_0}\) in such a way that there is a one to one correspondence between the set of principal one sided ideals (resp. principal quasi-ideals) of \(S\) and their counterparts in \(\Sigma_{\gamma_0}\).
openaire +2 more sources
On the growth of generating sets for direct powers of semigroups
, 2011 For a semigroup S its d-sequence is d(S) = (d1, d2, d3, . . .), where di is the smallest number of elements needed to generate the ith direct power of S.
J. T. Hyde +12 more
core +1 more source
Neutrosophic Left Almost Semigroup [PDF]
Neutrosophic Sets and Systems, 2014 In this paper we extend the theory of neutrosophy to study left almost semigroup shortly LAsemigroup. We generalize the concepts of LA-semigroup to form that for neutrosophic LA-semigroup.
Mumtaz Ali +3 more
doaj
Chaotic and hypercyclic properties of the quasi-linear Lasota equation
Open Mathematics, 2015 In this paper we describe an explicit solution semigroup of the quasi-linear Lasota equation. By constructing the relationship of this solution semigroup with the translation semigroup we obtain some sufficient and necessary conditions for the solution ...
Hung Cheng-Hung
doaj +1 more source
Matroids related to groups and semigroups
Researches in Mathematics, 2023 Matroid is defined as a pair $(X,\mathcal{I})$, where $X$ is a nonempty finite set, and $\mathcal{I}$ is a nonempty set of subsets of $X$ that satisfies the Hereditary Axiom and the Augmentation Axiom.
D.I. Bezushchak
doaj +1 more source
On the K-theory of crossed products by automorphic semigroup actions [PDF]
, 2012 Let P be a semigroup that admits an embedding into a group G. Assume that the embedding satisfies a certain Toeplitz condition and that the Baum-Connes conjecture holds for G.
J. Cuntz, S. Echterhoff, Xin Li
semanticscholar +1 more source
Mathematical Methods in the Applied Sciences, Volume 48, Issue 6, Page 6425-6446, April 2025.ABSTRACT The well‐posedness results for mild solutions to the fractional neutral stochastic differential system with Rosenblatt process with Hurst index Ĥ∈12,1$$ \hat{H}\in \left(\frac{1}{2},1\right) $$ is discussed in this article. To demonstrate the results, the concept of bounded integral contractors is combined with the stochastic result and ...
Dimplekumar N. Chalishajar +3 more
wiley +1 more source
Generating the full transformation semigroup using order preserving mappings
, 2003 For a linearly ordered set X we consider the relative rank of the semigroup of all order preserving mappings O-X on X modulo the full transformation semigroup Ex. In other words, we ask what is the smallest cardinality of a set A of mappings such that =
Higgins, PM +2 more
core +1 more source