Results 101 to 110 of about 84,954 (299)
Semigroups Arising From Asynchronous Automata [PDF]
arXiv, 2010 We introduce a new class of semigroups arising from a restricted class of asynchronous automata. We call these semigroups "expanding automaton semigroups." We show that the class of synchronous automaton semigroups is strictly contained in the class of expanding automaton semigroups, and that the class of expanding automaton semigroups is strictly ...
arxiv
Semigroup 𝐶*-algebras of 𝑎𝑥+𝑏-semigroups [PDF]
Transactions of the American Mathematical Society, 2015 We study semigroupC∗C^*-algebras ofax+bax+b-semigroups over integral domains. The goal is to generalize several results aboutC∗C^*-algebras ofax+bax+b-semigroups over rings of algebraic integers. We prove results concerning K-theory and structural properties like the ideal structure or pure infiniteness. Our methods allow us to treatax+bax+b-semigroups
openaire +4 more sources
A nonlinear characterization of stochastic completeness of graphs
Mathematische Nachrichten, Volume 298, Issue 3, Page 925-943, March 2025.Abstract We study nonlinear Schrödinger operators on graphs. We construct minimal nonnegative solutions to corresponding semilinear elliptic equations and use them to introduce the notion of stochastic completeness at infinity in a nonlinear setting. We provide characterizations for this property in terms of a semilinear Liouville theorem.
Marcel Schmidt, Ian Zimmermann
wiley +1 more source
Representation of right zero semigroups and their semilattices by a transformation semigroup
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2022 Background. As is known, an arbitrary semigroup can be represented by a semigroup of transformations that are right shifts either in this semigroup itself or in the extended semigroup obtained from the original one by adding an outer unit. The problems
L.V. Zyablitseva +2 more
doaj +1 more source
Maximal Semigroups and the Support Of Gauss — Semigroups [PDF]
, 1987 The purpose of this note is to describe a connection between the theory of probability measures on Lie groups and the Lie theory of semigroups. The objects under consideration will be one parameter semigroups of probability measures on Lie groups and their supports. We start by giving the basic definitions.
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PAMM, Volume 25, Issue 1, March 2025.ABSTRACT We consider the Koopman operator semigroup (Kt)t≥0$(K^t)_{t\ge 0}$ associated with stochastic differential equations of the form dXt=AXtdt+BdWt$dX_t = AX_t\,dt + B\,dW_t$ with constant matrices A$A$ and B$B$ and Brownian motion Wt$W_t$. We prove that the reproducing kernel Hilbert space HC$\mathbb {H}_C$ generated by a Gaussian kernel with a ...
Friedrich M. Philipp +4 more
wiley +1 more source
Cayley automaton semigroups [PDF]
arXiv, 2008 In this paper we characterize when a Cayley automaton semigroup is a group, is trivial, is finite, is free, is a left zero semigroup, or is a right zero semigroup.
arxiv
Cyclically regular semigroups [PDF]
arXiv, 2011 We study varieties of semigroups related to completely 0-simple semigroup. We present here an algorithmic descriptions of these varieties interms of "forbidden" semigroups.
arxiv
Structural theorems for ultradistribution semigroups [PDF]
arXiv, 2013 We consider exponential ultradistribution semigroups with non--densely defined generators and give structural theorems for ultradistribution semigroups. Also structural theorems for exponential ultradistribution semigroups are given.
arxiv
On Q-Fuzzy Ideals in Gamma-Semigroups [PDF]
arXiv, 2011 In this paper the concept of Q-fuzzification of ideals of gamma-semigroups has been introduced and some important properties have been investigated. A characterization of regular gamma-semigroup in terms of Q-fuzzy ideals has been obtained. Operator semigroups of a gamma-semigroup has been made to work by obtaining various relationships between Q-fuzzy
arxiv