نتایج جستجو برای: pomonoids
تعداد نتایج: 22 فیلتر نتایج به سال:
In (Golchin A. and Rezaei P., Subpullbacks and flatness properties of S-posets. Comm. Algebra. 37: 1995-2007 (2009)) study was initiated of flatness properties of right -posets over a pomonoid that can be described by surjectivity of corresponding to certain (sub)pullback diagrams and new properties such as and were discovered. In this article first of all we describe po-flatness propertie...
in this paper some properties of weak regular injectivity for $s$-posets, where $s$ is a pomonoid, are studied. the behaviour of different kinds of weak regular injectivity with products, coproducts and direct sums is considered. also, some characterizations of pomonoids over which all $s$-posets are of some kind of weakly regular injective are obtained. further, we giv...
in (golchin a. and rezaei p., subpullbacks and flatness properties of s-posets. comm. algebra. 37: 1995-2007 (2009)) study was initiated of flatness properties of right -posets over a pomonoid that can be described by surjectivity of corresponding to certain (sub)pullback diagrams and new properties such as and were discovered. in this article first of all we describe po-flatness propertie...
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. Furthermore, we give a counterexample to show that Theorem 3.22 of Shi is incorrect. Thereby we present a correct version of this theorem. Finally, we characterize pomonoids over which all cyclic $S$-posets are ...
this paper is devoted to the study of products of classes of right $s$-posets possessing one of the flatness properties and preservation of such properties under products. specifically, we characterize a pomonoid $s$ over which its nonempty products as right $s$-posets satisfy some known flatness properties. generalizing this results, we investigate products of right $s$-posets satisfying condi...
This paper is devoted to the study of products of classes of right $S$-posets possessing one of the flatness properties and preservation of such properties under products. Specifically, we characterize a pomonoid $S$ over which its nonempty products as right $S$-posets satisfy some known flatness properties. Generalizing this results, we investigate products of right $S$-posets satisfying Condi...
Let C be a class of ordered algebras of a given fixed type τ . Associated with the type is a first order language Lτ , which must also contain a binary predicate to be interpreted by the ordering in members of C. One can then ask the question, when is the class C axiomatisable by sentences of Lτ? In this paper we will be considering axiomatisability problems for classes of left S-posets over a ...
Let C be a class of ordered algebras of a given fixed type τ . Associated with the type is a first order language Lτ , which must also contain a binary predicate to be interpreted by the ordering in members of C. One can then ask the question, when is the class C axiomatisable by sentences of Lτ? In this paper we will be considering axiomatisability problems for classes of left S-posets over a ...
و s ??act -سیستم ها s از رسته ?? تلفیق (s ??pos)?? -سیستم های مرتب جزئ s رسته است. (pos) ?? رسته مجموعه های مرتب جزئ s روی mr و k ،d? ، a رابطه بین شرط های ? ?? در این پایان نامه بررس ?? مبحث اصل -سیستم های مرتب هموار قوی و تصویری s و همچنین رابطه بین s و تمامیت مرتب باشد. ?? م s با تمامیت مرتب نوشته ی perfection for pomonoids این پایان نامه تحقیق از مقاله ?? ایده ی اصل شده ?? گرفته شده و...
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