most citedOn the Lambek Invariants of Commutative Squares in a Quasi-Abelian Category

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math.CT2005★ 1 cited

On the Lambek Invariants of Commutative Squares in a Quasi-Abelian Category

Yaroslav Kopylov

We consider the invariants Ker and Im for commutative squares in quasi-abelian categories. These invariants were introduced by Lambek for groups and then studied by Hilton and Nomu…