Results 81 to 90 of about 543 (107)
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Semiprimitivity of Orthodox Semigroup Algebras
Communications in Algebra, 2016Let S be a finite orthodox semigroup or an orthodox semigroup where the idempotent band E(S) is locally pseudofinite. In this paper, by using principal factors and Rukolaǐne idempotents, we show that the contracted semigroup algebra R0[S] is semiprimitive if and only if S is an inverse semigroup and R[G] is semiprimitive for each maximal subgroup G of ...
Yingdan Ji, Yanfeng Luo
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On left quasinormal orthodox semigroups
Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 1983SynopsisThe existence of a smallest inverse congruence on an orthodox semigroup is known. It is also known that a regular semigroupSis locally inverse and orthodox if and only if there exists a local isomorphism fromSonto an inverse semigroupT.In this paper, we show the existence of a smallestR-unipotent congruence ρ on an orthodox semigroupSand give ...
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ON E-UNITARY COVERS OF ORTHODOX SEMIGROUPS
International Journal of Algebra and Computation, 1993In this paper we prove that each orthodox semigroup S has an E-unitary cover embeddable into a semidirect product of a band B by a group where B belongs to the band variety generated by the band of idempotents in S. This result is related to an embeddability question on E-unitary regular semigroups raised previously.
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\(\Gamma\)-orthodox semigroups
1994Summary: The notion of \(\Gamma\)-semigroups was introduced by M. K. Sen and N. K. Saha in the year 1986, they also introduced the concept of orthodox \(\Gamma\)-semigroup in 1990. In this paper we introduce \(\Gamma\)-orthodox semigroups and \(\Gamma\)-regular semigroups and present some basic properties of these \(\Gamma\)-semigroups.
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The Orthodox Dry Seeds Are Alive: A Clear Example of Desiccation Tolerance
Plants, 2022Angel J Matilla
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Sexual Abuse in the Orthodox Jewish Community: A Literature Review
Trauma, Violence, and Abuse, 2021Efrat Lusky-Weisrose, Dafna Tener
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Diffusion-free Grotthuss topochemistry for high-rate and long-life proton batteries
Nature Energy, 2019Xianyong Wu +2 more
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