Results 41 to 50 of about 323 (52)
Directed colimits of some flatness properties and purity of epimorphisms in S-posets
Open Mathematics, 2018 Let S be a pomonoid. In this paper, we introduce some new types of epimorphisms with certain purity conditions, and obtain equivalent descriptions of various flatness properties of S-posets, such as strong flatness, Conditions (E), (E′), (P), (Pw), (WP),
Liang Xingliang, Khosravi Roghaieh
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A further study on ordered regular equivalence relations in ordered semihypergroups
Open Mathematics, 2018 In this paper, we study the ordered regular equivalence relations on ordered semihypergroups in detail. To begin with, we introduce the concept of weak pseudoorders on an ordered semihypergroup, and investigate several related properties.
Tang Jian +3 more
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n–ary hyperstructures constructed from binary quasi–ordered semigroups
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014 Based on works by Davvaz, Vougiouklis and Leoreanu-Fotea in the field of n–ary hyperstructures and binary relations we present a construction of n–ary hyperstructures from binary quasi-ordered semigroups.
Novák Michal
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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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The hull-kernel topology on prime ideals in ordered semigroups
Open MathematicsThe aim of this study is to develop the theory of prime ideals in ordered semigroups. First, to ensure the existence of prime ideals, we study a class of ordered semigroups which will be denoted by SIP{{\mathbb{S}}}_{IP}.
Wu Huanrong, Zhang Huarong
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Homothetic interval orders [PDF]
N*-set, semigroup, weak order, semiorder, interval order, intransitive indifference, independence, homothetic structure ...
Bertrand Lemaire, Marc Le Menestrel
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The characterization of Nelson algebras by Sheffer stroke
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria MatematicaIn this study, Sheffer stroke Nelson algebras (briefly, s-Nelson algebras), (ultra) ideals, quasi-subalgebras, quotient sets, and fuzzy structures on these algebraic structures are introduced.
Oner Tahsin +2 more
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Body Mass Changes Across a Variety of Running Race Distances in the Tropics. [PDF]
Sports Med Open, 2015 Tan DW +8 more
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Identifying permethrin resistance loci in malaria vectors by genetic mapping. [PDF]
Parasitology, 2013 Witzig C +4 more
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