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math.AC2020★ 1 cited
When is an almost Gorenstein ring?
Marco D'Anna, Francesco Strazzanti
Given a one-dimensional Cohen-Macaulay local ring , we prove that it is almost Gorenstein if and only if is a canonical module of the ring $\math…
math.AC2020★ 2 cited
Almost canonical ideals and GAS numerical semigroups
Marco D'Anna, Francesco Strazzanti
We propose the notion of GAS numerical semigroup which generalizes both almost symmetric and 2-AGL numerical semigroups. Moreover, we introduce the concept of almost canonical idea…