Results 21 to 30 of about 179 (35)
A universality result for endomorphism monoids of some ultrahomogeneous structures
, 2011 We devise a fairly general sufficient condition ensuring that the endomorphism monoid of a countably infinite ultrahomogeneous structure (i.e. a Fra\"{\i}ss\'{e} limit) embeds all countable semigroups.
Dolinka, Igor, Mašulović, Dragan
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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
On a generalization of I-regularity
Open MathematicsLet SS be a pomonoid. The projectivity and strong flatness of right SS-posets have been central topics in the homological classification of pomonoids in recent decades. In 2005, Shi et al. introduced II-regular SS-posets and proved that all its cyclic SS-
Qiao Husheng, Feng Leting
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Sandwich semigroups in locally small categories I: Foundations
, 2018 Fix (not necessarily distinct) objects $i$ and $j$ of a locally small category $S$, and write $S_{ij}$ for the set of all morphisms $i\to j$. Fix a morphism $a\in S_{ji}$, and define an operation $\star_a$ on $S_{ij}$ by $x\star_ay=xay$ for all $x,y\in ...
Dolinka, Igor +6 more
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The engineering properties of silica fume and GGBS-based geopolymer mortars cured in elevated temperature [PDF]
Geopolymer, a promising alternative to traditional portland cement, offers a wide range of sustainable applications in the construction industry. Geopolymer mortar presents a sustainable future by mitigating carbon dioxide emissions associated with ...
Abutaha, Fuad, Çelik, Asude İrem
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Recent developments around partial actions
, 2018 We give an overview of publications on partial actions and related concepts, paying main attention to some recent developments.Comment: New bibliography added and ...
Dokuchaev, Mikhailo
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The California corridor transportation system: A design summary [PDF]
A design group was assembled to find and research criteria relevent to the design of a California Corridor Transportation System. The efforts of this group included defining the problem, conducting a market analysis, formulation of a demand model ...
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, 2001 We describe new combinatorial methods for constructing an explicit free resolution of Z by ZG-modules when G is a group of fractions of a monoid where enough least common multiples exist (``locally Gaussian monoid''), and, therefore, for computing the ...
Dehornoy, Patrick, Lafont, Yves
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On 0-homology of categorical at zero semigroups
Open Mathematics, 2009 Novikov Boris, Polyakova Lyudmyla
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