Results 21 to 30 of about 266 (53)
Zappa-Sz\'ep products of semigroups and their C*-algebras [PDF]
, 2014 Zappa-Sz\'ep products of semigroups encompass both the self-similar group actions of Nekrashevych and the quasi-lattice-ordered groups of Nica. We use Li's construction of semigroup $C^*$-algebras to associate a $C^*$-algebra to Zappa-Sz\'ep products and
Brownlowe, Nathan +3 more
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On the power pseudovariety $\mathbf{PCS}$ [PDF]
, 2012 Some new semantic and syntactic characterizations of the members of the power pseudovariety $\mathbf{PCS}$ are obtained. This leads in particular to new algorithms for deciding membership in $\mathbf{PCS}$
Auinger, K.
core +4 more sources
A Svarc-Milnor lemma for monoids acting by isometric embeddings
, 2010 We continue our programme of extending key techniques from geometric group theory to semigroup theory, by studying monoids acting by isometric embeddings on spaces equipped with asymmetric, partially-defined distance functions.
de la Harpe P. +4 more
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Free idempotent generated semigroups and endomorphism monoids of free $G$-acts [PDF]
, 2014 The study of the free idempotent generated semigroup $\mathrm{IG}(E)$ over a biordered set $E$ began with the seminal work of Nambooripad in the 1970s and has seen a recent revival with a number of new approaches, both geometric and combinatorial.
Dolinka, Igor +2 more
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Partial Category Actions on Sets and Topological Spaces
, 2017 We introduce (continuous) partial category actions on sets (topological spaces) and show that each such action admits a universal globalization. Thereby, we obtain a simultaneous generalization of corresponding results for groups, by Kellendonk and ...
Nystedt, Patrik
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Unified theory for finite Markov chains [PDF]
, 2019 We provide a unified framework to compute the stationary distribution of any finite irreducible Markov chain or equivalently of any irreducible random walk on a finite semigroup $S$.
Rhodes, John, Schilling, Anne
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New Representations of Matroids and Generalizations [PDF]
, 2011 We extend the notion of matroid representations by matrices over fields and consider new representations of matroids by matrices over finite semirings, more precisely over the boolean and the superboolean semirings.
Izhakian, Zur, Rhodes, John
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On geometrically equivalent S-acts [PDF]
, 2011 In this paper, considering the geometric equivalence for algebras of a variety $_{S}A$ of S-acts over a monoid S, we obtain representation theorems describing all types of the equivalence classes of geometrically equivalent S-acts of varieties $_{S}A ...
Katsov, Yefim
core
Effect of Copolymer Latexes on Physicomechanical Properties of Mortar Containing High Volume Fly Ash as a Replacement Material of Cement [PDF]
, 2014 © 2014 El-Sayed Negim et al. This paper investigates the physicomechanical properties of mortar containing high volume of fly ash (FA) as partial replacement of cement in presence of copolymer latexes.
Bekbayeva, L +5 more
core +4 more sources
Presentations and representations of surface singular braid monoids
, 2017 The surface singular braid monoid corresponds to marked graph diagrams of knotted surfaces in braid form. In a quest to resolve linearity problem for this monoid, we will show that if it is defined on at least two or at least three strands, then its two ...
Jablonowski, Michal
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