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2.9 (1966)

Open

Do there exist regular associative operations on the class of groups satisfying the weakened Mal’cev condition (that is, monomorphisms of the factors of an arbitrary product can be glued together, generally speaking, into a homomorphism of the whole product), but not satisfying the analogous condition for epimorphisms of the factors?

Contributor: O. N. Golovin

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