Introduces the relation category RG and admissible graph relations to define a subcategory of RG admitting a contravariant functor to k-Alg that simultaneously generalizes covariant and contravariant functors for Leavitt path algebras, graph C*-algebras and related constructions.
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Relation morphisms of directed graphs
Introduces the relation category RG and admissible graph relations to define a subcategory of RG admitting a contravariant functor to k-Alg that simultaneously generalizes covariant and contravariant functors for Leavitt path algebras, graph C*-algebras and related constructions.