Results 11 to 20 of about 146,027 (294)
On the Structure Space of a Г -Semigroup Via Its Left Operator Semigroup
Discussiones Mathematicae - General Algebra and Applications, 2022 The structure space of a semigroup endowed with hull kernel topology is introduced and studied. Also the structure space of a Г -semigroup is defined and a homeomorphism has been established between structure space of a Г -semigroup and the structure ...
Goswami Sarbani Mukherjee +2 more
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Semigroup Forum, 2016 We define the notion of the partial order of ends of the Cayley graph of a semigroup. We prove that the structure of the ends of a semigroup is invariant under change of finite generating set and at the same time is inherited by subsemigroups and extensions of finite Rees index.
Craik, Simon +4 more
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Structure of the Semigroup of Semigroup Extensions [PDF]
Transactions of the American Mathematical Society, 1971 Let B B denote a compact semigroup with identity and G G a compact abelian group. Let Ext ( B , G ) \operatorname {Ext} (B,G) denote the semigroup of extensions of G G by B B . We show that Ext
J. W. Stepp, Ronald Fulp
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Group key management based on semigroup actions [PDF]
arXiv.org, 2015 In this work we provide a suite of protocols for group key management based on general semigroup actions. Construction of the key is made in a distributed and collaborative way.
J. A. López-Ramos +3 more
semanticscholar +1 more source
Quantitative recurrence for free semigroup actions [PDF]
, 2016 We consider finitely generated free semigroup actions on a compact metric space and obtain quantitative information on Poincaré recurrence, average first return time and hitting frequency for the random orbits induced by the semigroup action. Besides, we
M. Carvalho, F. Rodrigues, P. Varandas
semanticscholar +1 more source
Complex Analysis and Operator Theory, 2011 In this paper we consider a semigroup on trigonometric expansions that will be called the Theta semigroup since its kernel is a multiple of the third Jacobi theta function. We study properties of this semigroup and prove that it is a positive diffusion semigroup. We also obtain that its subordinated semigroup is the classical Poisson semigroup.
Ahmed I. Zayed, Wilfredo Urbina
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Specification and thermodynamical properties of semigroup actions [PDF]
, 2015 In the present paper, we study the thermodynamical properties of finitely generated continuous subgroup actions. We propose a notion of topological entropy and pressure functions that do not depend on the growth rate of the semigroup and introduce strong
F. Rodrigues, P. Varandas
semanticscholar +1 more source
Pseudo-amenability and pseudo-contractibility of restricted semigroup algebra
Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2018 In this article the pseudo-amenability and pseudo-contractibility of restricted semigroup algebra lr1(S) and semigroup algebra, l1(Sr) on restricted semigroup, Sr are investigated for different classes of inverse semigroups such as Brandt semigroup, and ...
Olufemi Johnson Ogunsola +1 more
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Max-plus fundamental solution semigroups for a class of difference Riccati equations [PDF]
, 2015 Recently, a max-plus dual space fundamental solution semigroup for a class of difference Riccati equation (DRE) has been developed. This fundamental solution semigroup is represented in terms of the kernel of a specific max-plus linear operator that ...
Dower, Peter M., Zhang, Huan
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On Maximal Subgroups of Free Idempotent Generated Semigroups [PDF]
, 2011 We prove the following results: (1) Every group is a maximal subgroup of some free idempotent generated semigroup. (2) Every finitely presented group is a maximal subgroup of some free idempotent generated semigroup arising from a finite semigroup.
Gray, Robert, Ruskuc, Nik
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