isomorphism in Bulgarian

(category theory) A morphism which has a two-sided inverse; the composition of the morphism and such an inverse yields either one of two identity morphisms (depending on the order of composition).

(category theory) A morphism which has a two-sided inverse; the composition of the morphism and such an inverse yields either one of two identity morphisms (depending on the order of composition).

(group algebra) A bijection f such that both f and its inverse f −1 are homomorphisms, that is, structure-preserving mappings.