Results 1 to 10 of about 523 (235)
The B-topology on S∗-doubly quasicontinuous posets [PDF]
The notions of os{o}_{s}-convergence and S∗{S}^{\ast }-doubly quasicontinuous posets are introduced, which can be viewed as common generalizations of Birkhoff’s order-convergence and S∗{S}^{\ast }-doubly continuous posets, respectively. We first consider
Sun Tao, Li Qingguo, Zou Zhiwei
doaj +2 more sources
A study on strongly convex hyper S-subposets in hyper S-posets [PDF]
In this paper, we study various strongly convex hyper S-subposets of hyper S-posets in detail. To begin with, we consider the decomposition of hyper S-posets.
Tang Jian, Xie Xiang-Yun, Davvaz Bijan
doaj +2 more sources
NETS AND SEPARATED S-POSETS [PDF]
Nets, useful topological tools, used to generalize certainconcepts that may only be general enough in the context of metricspaces. In this work we introduce this concept in an $S$-poset, aposet with an action of a posemigroup $S$ on it whichis a very ...
Mahdieh Haddadi
doaj +3 more sources
An investigation on hyper S-posets over ordered semihypergroups
In this paper, we define and study the hyper S-posets over an ordered semihypergroup in detail. We introduce the hyper version of a pseudoorder in a hyper S-poset, and give some related properties.
Tang Jian, Davvaz Bijan, Xie Xiang-Yun
doaj +3 more sources
A complete theoretical framework for inferring horizontal gene transfers using partial order sets. [PDF]
We present a method for detecting horizontal gene transfer (HGT) using partial orders (posets). The method requires a poset for each species/gene pair, where we have a set of species S, and a set of genes G.
Nahla A Belal, Lenwood S Heath
doaj +2 more sources
Axiomatisability problems for S-posets [PDF]
Let C be a class of algebras of a given fixed type t. Associated with the type is a first order language L_t. One can then ask the question, when is the class C axiomatisable by sentences of L_t.
Victoria Gould, Lubna Shaheen
openalex +5 more sources
On homological classification of pomonoids by GP-po-flatness of S-posets
In this paper, we introduce GP-po-flatness property of S-posets over a pomonoid S, which lies strictly between principal weak po-flatness and po-torsion freeness.
Liang Xingliang +2 more
doaj +3 more sources
On (po-)torsion free and principally weakly (po-)flat $S$-posets [PDF]
In this paper, we first consider (po-)torsion free and principally weakly (po-)flat $S$-posets, specifically we discuss when (po-)torsion freeness implies principal weak (po-)flatness.
Roghaieh Khosravi, Xingliang Liang
doaj +3 more sources
Directed colimits of some flatness properties and purity of epimorphisms in S-posets
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
doaj +3 more sources
Erratum to “On homological classification of pomonoids by regular weak injectivity properties of S-posets” [PDF]
Zhang Xia, Laan Valdis
doaj +2 more sources

