Results 91 to 100 of about 529,491 (220)
Ordered groupoids and the holomorph of an inverse semigroup
, 2015 We present a construction for the holomorph of an inverse semigroup, derived from the cartesian closed structure of the category of ordered groupoids.
N. D. Gilbert +3 more
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On The Amenability Of Inverse Semigroup Actions [PDF]
The search for an appropriate notion of amenability for inverse semigroups is an ongoing program in operator algebras. This thesis approaches this problem using inverse semigroup actions.
Gondek, Joseph Patrick Zbigniew
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Length of the inverse symmetric semigroup
, 2011 The length of the lattice of subsemigroups of the inverse symmetric semigroup ISn is ...
Livinsky, I., Ganyushkin, O.
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The Bergman property for semigroups [PDF]
, 2009 In this article, we study the Bergman property for semigroups and the associated notions of cofinality and strong cofinality. A large part of the paper is devoted to determining when the Bergman property, and the values of the cofinality and strong ...
Ruskuc, N. +9 more
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Centralisers in the infinite symmetric inverse semigroup
, 2013 For an arbitrary set X (finite or infinite), denote by I(X) the symmetric inverse semigroup of partial injective transformations on X. For an element a in I(X), let C(a) be the centralizer of a in I(X).
Konieczny, Janusz
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SEMILATTICE OF BISIMPLE INVERSE SEMIGROUPS
The Quarterly Journal of Mathematics, 1971 The purpose of this paper is to give a structure for a semigroup which is a semilattice of bisimple inverse semigroups and satisfies certain conditions. For such a semigroup, we characterize the idempotent separating congruences.
openaire +2 more sources
, 2013 A double semigroup is a set equipped with two associative binary operations satisfying the middle-four interchange law. A double inverse semigroup is a double semigroup in which both operations are inverse semigroup operations. It is shown by Kock (2007)
DeWolf, Darien
core
Semigroups of order-decreasing transformations [PDF]
, 2012 Let X be a totally ordered set and consider the semigroups of orderdecreasing (increasing) full (partial, partial one-to-one) transformations of X. In this Thesis the study of order-increasing full (partial, partial one-to-one) transformations has been
Umar, Abdullahi
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Cancellative and Malcev presentations for finite Rees index subsemigroups and extensions [PDF]
, 2008 It is known that, for semigroups, the property of admitting a finite presentation is preserved on passing to subsemigroups and extensions of finite Rees index.
Cain, Alan James +3 more
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(b, c)-INVERSE, INVERSE ALONG AN ELEMENT, AND THE SCHUTZENBERGER CATEGORY OF A SEMIGROUP
, 2021 In this short note, we study two specific generalized inverses, the (b, c)-inverse of Drazin and the inverse along an element of the present author, in a categorical way.
Mary, Xavier
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