Special morphisms of groupoids.
Ivan, Gheorghe (2002)
Novi Sad Journal of Mathematics
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Displaying similar documents to “On left distributive left idempotent groupoids”
Special morphisms of groupoids.
A notion of open generalized morphism that carries amenability.
Buneci, Mădălina Roxana (2005)
Acta Universitatis Apulensis. Mathematics - Informatics
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Cohomology groups of a groupoid.
Wainberg, Dorin (2006)
Acta Universitatis Apulensis. Mathematics - Informatics
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Skew elements in -semigroups.
Petrescu, Adrian (2005)
Acta Universitatis Apulensis. Mathematics - Informatics
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Pointwise and global sums and negatives of binary relations.
Glavosits, Tamás, Száz, Árpád (2002)
Analele Ştiinţifice ale Universităţii “Ovidius" Constanţa. Seria: Matematică
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Varieties of idempotent groupoids with small clones
J. Gałuszka (1999)
Colloquium Mathematicae
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We give an equational description of all idempotent groupoids with at most three essentially n-ary term operations.
The minimal extension of sequences III. On problem 16 of Grätzer and Kisielewicz
J. Dudek (1996)
Colloquium Mathematicae
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The main result of this paper is a description of totally commutative idempotent groupoids. In particular, we show that if an idempotent groupoid (G,·) has precisely m ≥ 2 distinct essentially binary polynomials and they are all commutative, then G contains a subgroupoid isomorphic to the groupoid described below. In [2], this fact was proved for m = 2.
Non-Hausdorff groupoids, proper actions and -theory.
Tu, Jean-Louis (2004)
Documenta Mathematica
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Semi-étale groupoids and applications
Klaus Thomsen (2010)
Annales de l’institut Fourier
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We associate a -algebra to a locally compact Hausdorff groupoid with the property that the range map is locally injective. The construction generalizes J. Renault’s reduced groupoid -algebra of an étale groupoid and has the advantage that it works for the groupoid arising from a locally injective dynamical system by the method introduced in increasing generality by Renault, Deaconu and Anantharaman-Delaroche. We study the -algebras of such groupoids and give necessary and sufficient...