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Rectangular groupoids and related structures

The quasivariety of groupoids [Formula: see text] satisfying the implication [Formula: see text] generalises rectangular semigroups and central groupoids. We call them rectangular groupoids and find three combinatorial structures based upon arrays, matrices and graphs that are closely related. These...

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Detalles Bibliográficos
Autor principal: Boykett, Tim
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3688338/
https://www.ncbi.nlm.nih.gov/pubmed/23836949
http://dx.doi.org/10.1016/j.disc.2013.03.012