Results 41 to 50 of about 523 (235)
On Morita equivalence of partially ordered semigroups with local units [PDF]
, 2011 We show that for two partially ordered semigroups S and T with common local units, there exists a unitary Morita context with surjective maps if and only if the categories of closed right S- and T-posets are ...
Tart, Lauri
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Miskolc Mathematical Notes, 2023 The concept of a tolerance relation, shortly called tolerance, was studied on various algebras since the seventieth of the twentieth century by B. Zelinka and the first author. Since tolerances need not be transitive, their blocks may overlap and hence in general the set of all blocks of a tolerance cannot be converted into a quotient algebra in the ...
Chajda, Ivan, Länger, Helmut
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Mediterranean Journal of Mathematics, 2020 We introduce Cayley posets as posets arising naturally from pairs ...
Ignacio García-Marco +2 more
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Random and deterministic versions of extremal poset problems [PDF]
, 2016 Let P(n) denote the set of all subsets of {1,...,n} and let P(n,p) be the set obtained from P(n) by selecting elements independently at random with probability p. The Boolean lattice is a partially ordered set, or poset, consisting of the elements of P(n)
Hogenson, Kirsten Ann
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Equivalent forms for a poset to be modular poset
Discussiones Mathematicae - General Algebra and Applications, 2021 The notion of modular and distributive posets which generalize the corresponding notions from the lattice theory are introduced by J. Larmerova and J. Rachnek. Later some extended results of uniquely complemented lattice are derived to uniquely complemented posets. Now, in this paper, some equivalent conditions for a poset to be modular poset are given.
T. Ravi Kishore, P. Sundarayya
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Dominions, zigzags and epimorphisms for partially ordered semigroups [PDF]
, 2014 We prove an analogue of Isbell's celebrated zigzag theorem for partially ordered semigroups. This theorem provides a useful description of dominions which we employ to describe absolute closedness of posemigroups and epimorphisms in varieties of ...
Sohail, Nasir, Tart, Lauri
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Israel Journal of Mathematics, 2020 New references are added, several typos are ...
Can, Mahir Bilen, Cherniavsky, Yonah
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How to get the weak order out of a digraph ? [PDF]
Discrete Mathematics & Theoretical Computer Science, 2015 We construct a poset from a simple acyclic digraph together with a valuation on its vertices, and we compute the values of its Möbius function. We show that the weak order on Coxeter groups $A$$n-1$, $B$$n$, $Ã$$n$, and the flag weak order on the wreath ...
Francois Viard
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Lattice embeddings between types of fuzzy sets. Closed-valued fuzzy sets
, 2017 In this paper we deal with the problem of extending Zadeh's operators on fuzzy sets (FSs) to interval-valued (IVFSs), set-valued (SVFSs) and type-2 (T2FSs) fuzzy sets.
Lobillo, F. J. +3 more
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Classifying topoi in synthetic guarded domain theory
, 2022 Several different topoi have played an important role in the development and applications of synthetic guarded domain theory (SGDT), a new kind of synthetic domain theory that abstracts the concept of guarded recursion frequently employed in the ...
Palombi, Daniele, Sterling, Jonathan
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