Results 11 to 20 of about 60,099 (181)
Finite coverings of semigroups and related structures [PDF]
International Journal of Group Theory, 2023 For a semigroup $S$, the covering number of $S$ with respect to semigroups, $\sigma_s(S)$, is the minimum number of proper subsemigroups of $S$ whose union is $S$.
Casey Donoven, Luise-Charlotte Kappe
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Israel Journal of Mathematics, 2022 47 pages.
Hazrat, Roozbeh (R16959) +1 more
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Epimorphisms, Dominions, and Various Classes of Saturated Semigroups
Journal of Mathematics, 2022 In this paper, we discussed some saturated classes of ℋ-commutative semigroups, left (right) regular semigroups, medial semigroups, and paramedial semigroups. The results of this paper significantly extend the long standing result about normal bands that
N. Alam +4 more
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Generalized Strongly Increasing Semigroups
Mathematics, 2021 In this work, we present a new class of numerical semigroups called GSI-semigroups. We see the relations between them and other families of semigroups and we explicitly give their set of gaps. Moreover, an algorithm to obtain all the GSI-semigroups up to
E. R. García Barroso +2 more
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Some Results on Single Valued Neutrosophic Bi-ideals in Ordered Semigroups [PDF]
Neutrosophic Sets and Systems, 2021 The importance of the theory of neutrosophy is due to its connections with several fields of sciences, engineering, and technology. So, the aim of this paper is to relate neutrosophy with some algebraic structures mainly the ordered semigroups.
H. Al-Akara, M. Al-Tahan, J. Vimala
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Left (Right) Regular and Transposition Regular Semigroups and Their Structures
Mathematics, 2022 Regular semigroups and their structures are the most wonderful part of semigroup theory, and the contents are very rich. In order to explore more regular semigroups, this paper extends the relevant classical conclusions from a new perspective: by ...
Xiaohong Zhang, Yudan Du
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RIGHT PURE UNI-SOFT IDEALS OF ORDERED SEMIGROUPS [PDF]
Matrix Science Mathematic, 2018 In this paper, we initiate the study of pure uni-soft ideals in ordered semigroups. The soft version of right pure ideals in ordered semigroups is considered which is an extension of the concept of right pure ideal in ordered semigroups. We also give the
Raees Khan +3 more
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Linear inequations with 5-digit and regularity conditions on ordered ternary semigroups [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2021 We investigate linear inequations with 5-digit of regular elements of ordered ternary semigroups, define the notions of ordered weakly left ideals, ordered weakly right ideals and ordered strong bi-ideals of ordered ternary semigroups, give some ...
Patchara Pornsurat +2 more
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Open Mathematics, 2015 In this paper, we give some new characterizations of orthodox semigroups in terms of the set of inverses of idempotents. As a generalization, a new class of regular semigroups, namely Vn-semigroups, is introduced.
Gu Ze, Tang Xilin
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On algebraic geometry over completely simple semigroups [PDF]
International Journal of Group Theory, 2019 We study equations over completely simple semigroups and describe the coordinate semigroups of irreducible algebraic sets for such semigroups.
Artem Shevlyakov
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