Results 41 to 50 of about 64,296 (138)

The Ellis semigroup of a nonautonomous discrete dynamical system

, 2016
We introduce the {\it Ellis semigroup} of a nonautonomous discrete dynamical system $(X,f_{1,\infty})$ when $X$ is a metric compact space. The underlying set of this semigroup is the pointwise closure of $\{f\sp{n}_1 \, |\, n\in \mathbb{N}\}$ in the ...
García-Ferreira, S., Sanchis, M.
core  

Syntactic Semigroups

, 1997
This chapter gives an overview on what is often called the algebraic theory of finite automata. It deals with languages, automata and semigroups, and has connections with model theory in logic, boolean circuits, symbolic dynamics and topology.
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One-Parameter Semigroups in a Semigroup [PDF]

Transactions of the American Mathematical Society, 1960
Paul S. Mostert, Allen Shields
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Absorption semigroups, their generators, and Schrödinger semigroups

Journal of Functional Analysis, 1986
On presente des resultats de perturbations pour des C 0 -semi-groupes. On considere le probleme aux valeurs initiales pour l'equation de la chaleur avec absorption avec une solution dans L p (R v ) avec une mauvaise fonction V:Rν→R.
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On Monothetic Semigroups [PDF]

Proceedings of the American Mathematical Society, 1957
By semigroup we shall mean a Hausdorff space together with a continuous associative multiplication. The study of monothetic semigroups has been initiated independently by several authors; most of the known results involve some form of compactness. We repeat here some of these known results for the sake of completeness. Among the results we establish is
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The semigroup of semigroup extensions

Semigroup Forum, 1971
J. W. Stepp, J. W. Stepp, Ronald Fulp, Ronald Fulp   +3 more
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Quasi-Distribution Semigroups and Integrated Semigroups

Journal of Functional Analysis, 1997
AbstractSupposeXis a Banach space. We introduce the concept of quasi-distribution semigroups onX, as a generalization of the concept of distribution semigroups introduced by Lions in [19]. In our approach, the generatorAof a quasi-distribution semigroup may not be densely defined.
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Semigroup algebras of linear semigroups

Journal of Algebra, 1992
Jan Okniński, Mohan S. Putcha
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Finite semigroups as categories, ordered semigroups or compact semigroups [PDF]

, 1996
Abstract Algebraic semigroup theory has made great strides in the recent years. It is a remarquable fact that these new results did require the introduction of some auxiliary structures. The aim of this article is to emphasize the role of three of these tools: topology, partial order and categories.
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Nilpotent Semigroups and Semigroup Algebras

Journal of Algebra, 1994
Eric Jespers, Jan Okniński
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