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math.AC2021
Steiner Configurations ideals: containment and colouring
Edoardo Ballico, Giuseppe Favacchio, Elena Guardo +2
Given a homogeneous ideal , the Containment problem studies the relation between symbolic and regular powers of , that is, it asks for which pair $…
math.AC2019
Fiber invariants of projective morphisms and regularity of powers of ideals
Sankhaneel Bisui, Huy Tai Ha, Abu Chackalamannil Thomas
We introduce an invariant, associated to a coherent sheaf over a projective morphism of schemes, which controls when sheaf cohomology can be passed through the given morphism. We t…