Displaying similar documents to “Associativity in monoids and categories”

Quotients and homomorphisms of relational systems

Ivan Chajda, Helmut Länger (2010)

Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica

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Relational systems containing one binary relation are investigated. Quotient relational systems are introduced and some of their properties are characterized. Moreover, homomorphisms, strong mappings and cone preserving mappings are introduced and the interplay between these notions is considered. Finally, the connection between directed relational systems and corresponding groupoids is investigated.

Paramedial groupoids

Jung R. Cho, Jaroslav Ježek, Tomáš Kepka (1999)

Czechoslovak Mathematical Journal

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