منابع مشابه
On the Zappa-szép Product
The semidirect product of two groups is a natural generalization of the direct product of two groups in that the requirement that both factors be normal in the product is replaced by the weaker requirement that only one of the factors be normal in the product. The Zappa-Szép product of two groups is a natural generalization of the semidirect product of two groups in that neither factor is requi...
متن کاملNo : 2 Title : ‘ Semigroups with Inverse Skeletons and Zappa - Szép Products ’
The aim of this paper is to study semigroups possessing E-regular elements, where an element a of a semigroup S is E-regular if a has an inverse a◦ such that aa◦, a◦a lie in E ⊆ E(S). Where S possesses ‘enough’ (in a precisely defined way) E-regular elements, analogues of Green’s lemmas and even of Green’s theorem hold, where Green’s relations R,L,H and D are replaced by R̃E , L̃E , H̃E and D̃E . N...
متن کاملSemigroups related to subshifts of graphs
We characterise in terms of Zappa-Szép products a class of semigroups which arise from actions of groupoids on semigroups constructed from subshifts of graphs.
متن کاملsurvey on the rule of the due & hindering relying on the sheikh ansaris ideas
قاعده مقتضی و مانع در متون فقهی کم و بیش مستند احکام قرار گرفته و مورد مناقشه فقهاء و اصولیین می باشد و مشهور معتقند مقتضی و مانع، قاعده نیست بلکه یکی از مسائل ذیل استصحاب است لذا نگارنده بر آن شد تا پیرامون این قاعده پژوهش جامعی انجام دهد. به عقیده ما مقتضی دارای حیثیت مستقلی است و هر گاه می گوییم مقتضی احراز شد یعنی با ماهیت مستقل خودش محرز گشته و قطعا اقتضاء خود را خواهد داشت مانند نکاح که ...
15 صفحه اولon the effects of pictorial clues on the efl learners listening comprehension development
the following null hypothesis was proposed: there is no significant difference between the efl students listening comprehension development receiving pictorial cues and those receiving no cuse. to test the null hypothesis, 52 male and femal freshmen students of medicine studing at iran university of medical scinces were randomly selected from a total population of 72 students. to ensure that th...
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ژورنال
عنوان ژورنال: Communications in Algebra
سال: 2005
ISSN: 0092-7872,1532-4125
DOI: 10.1081/agb-200047404