Results 11 to 20 of about 205 (64)

On Free Products and Amalgams of Pomonoids [PDF]

open access: yesCommunications in Algebra, 2013
The study of amalgamation in the category of partially ordered monoids was initiated by Fakhuruddin in the 1980s. In 1986 he proved that, in the category of commutative pomonoids, every absolutely flat commutative pomonoid is a weak amalgmation base and ...
Bana Al Subaiei, J. Renshaw
semanticscholar   +11 more sources

The coextension of commutative pomonoids and its application to triangular norms [PDF]

open access: yesQuaestiones Mathematicae, 2019
Group coextensions of monoids, which generalise Schreier-type extensions of groups, have originally been defined by P.A. Grillet and J. Leech. The present paper deals with pomonoids, that is, monoids that are endowed with a compatible partial order. Following the lines of the unordered case, we define pogroup coextensions of pomonoids.
Jiří Janda, Thomas Vetterlein
exaly   +6 more sources

On the homological classification of pomonoids: atomic posemilattices

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 (P w ) which, so far, has not received much attention. In a recent paper by the author pomonoids from a subclass of completely
M. Kilp
semanticscholar   +4 more sources

Rees coextensions of finite tomonoids and free pomonoids [PDF]

open access: yesSemigroup Forum, 2018
A totally ordered monoid, or tomonoid for short, is a monoid endowed with a compatible total order. We reconsider in this paper the problem of describing the one-element Rees coextensions of a finite, negative tomonoid S, that is, those tomonoids that ...
Milan Petrík, T. Vetterlein
semanticscholar   +6 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)

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

On pomonoid of partial transformations of a poset

open access: yesOpen Mathematics, 2023
The main objective of this article is to study the ordered partial transformations PO(X){\mathcal{PO}}\left(X) of a poset XX. The findings show that the set of all partial transformations of a poset with a pointwise order is not necessarily a pomonoid ...
Al Subaiei Bana
doaj   +2 more sources

Examples of Pomonoids of Full Transformations of a Poset

open access: yesScientific Journal of King Faisal University: Basic and Applied Sciences, 2022
In this research, the partially ordered monoid (simple pomonoid) full transformations of a poset O(X) is studied, and some related properties are examined.
Bana Al Subaiei
doaj   +2 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   +3 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   +1 more source

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   +1 more source

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