most citedThe cone of Betti diagrams of bigraded artinian modules of codimension two

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math.AC2010★ 2 cited

The cone of Betti diagrams of bigraded artinian modules of codimension two

Mats Boij, Gunnar Floystad

We describe the positive cone generated by bigraded Betti diagrams of artinian modules of codimension two, whose resolutions become pure of a given type when taking total degrees.…