Results 11 to 20 of about 104 (53)

ON COMMUTATIVE RESIDUAL POMONOIDS [PDF]

open access: yesDemonstratio Mathematica, 1998
Summary: We prove the following results: Commutative residual pomonoids with the identity as a maximal element are categorically equivalent to BCI-algebras with condition (S); commutative residual pomonoids with the identity as the greatest element, commutative implicative semigroups, and BCK-algebras with condition (S) are categorically equivalent to ...
Jie Meng
exaly   +3 more sources

Varieties of Commutative Residuated Integral Pomonoids and Their Residuation Subreducts [PDF]

open access: yesJournal of Algebra, 1997
Let \(\langle A;\oplus ,0,\leq \rangle\) be a commutative (dually) integral partially ordered monoid whose identity \(0\) is the least element of \(\langle A,\leq \rangle\), where \(\leq\) is a partial order compatible with the monoid operation \(\oplus\) in the sense that \(a\oplus b\leq c\oplus d\) whenever \(a\leq c\) and \(b\leq d\).
Blok, Willem J., Raftery, James G.
exaly   +4 more sources

Characterizarion of pomonoids by weakly pullback flat S-posets(弱拉回平坦序S-系对序幺半群的刻画) [PDF]

open access: yesZhejiang Daxue xuebao. Lixue ban, 2019
设S 是序幺半群,借助环模理论以及半群S-系理论方法,在序S-系范畴中研究了弱拉回平坦性质。刻画了弱拉回平坦序S-系关于直积封闭的序幺半群类以及弱拉回平坦性质与其他性质一致的序幺半群类,讨论了循环序S-系具有拉回平坦覆盖的条件,进而推广了S-系的一些重要结果。
LIANGXingliang(梁星亮)   +2 more
doaj   +3 more sources

Rees coextensions of finite tomonoids and free pomonoids [PDF]

open access: yesSemigroup Forum, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Petrík, M. (Milan), Vetterlein, T.
openaire   +6 more sources

On the homological classification of pomonoids: atomic posemilattices [PDF]

open access: yesActa et Commentationes Universitatis Tartuensis de Mathematica, 2013
Between dierent and relatively well investigated so-called flatness properties of S-posets there is a property called property (Pw) which, so far, has not received much attention. In a recent paper by the author pomonoids from a subclass of completely simple semigroups with adjoined identity, all of whose cyclic (Rees factor) S-posets satisfy property (
Kilp, Mati
openaire   +3 more sources

On homological classification of pomonoids by regular weak injectivity properties of S-posets

open access: yesOpen Mathematics, 2007
Abstract If S is a partially ordered monoid then a right S-poset is a poset A on which S acts from the right in such a way that the action is compatible both with the order of S and A. By regular weak injectivity properties we mean injectivity properties with respect to all regular monomorphisms (not all monomorphisms) from different ...
Zhang Xia, Laan Valdis
doaj   +2 more sources

On (po-)torsion free and principally weakly (po-)flat $S$-posets [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2018
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   +2 more sources

Subpullbacks and Po-flatness Properties of S-posets [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2014
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 ...
A. Golchin, L. Nouri
doaj   +2 more sources

Properties of products for flatness in the category of $S$-posets [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2016
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.
Roghaieh Khosravi, Mojtaba Sedaghatjoo
doaj   +2 more sources

Absolute flatness and amalgams in pomonoids

open access: yesSemigroup Forum, 1986
We define a tensor product for partially ordered sets acted on by a partially ordered monoid and study the related property of absolute flatness. As a by-product we show that a partially ordered commutative group is a strong amalgamation base in the category of partially ordered commutative monoids. This result originally due to Schreier in the case of
exaly   +2 more sources

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