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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…
math.AG2019
Resurgence numbers of fiber products of projective schemes
Sankhaneel Bisui, Huy Tai Ha, A. V. Jayanthan +1
We investigate the resurgence and asymptotic resurgence numbers of fiber products of projective schemes. Particularly, we show that while the asymptotic resurgence number of the k-…