1 citations · 1 across the 2 of their papers we have counts for
3 papers
math.NT2004
On maps between modular Jacobians and Jacobians of Shimura curves
David Helm
By the Jacquet-Langlands correspondence and Faltings' isogeny theorem, it is known that the abelian variety J_0^{Dpq}(N) (the Jacobian of a Shimura curve of discriminant Dpq with G…
math.AC2003★ 1 cited
Algorithms for graded injective resolutions and local cohomology over semigroup rings
David Helm, Ezra Miller
Let Q be an affine semigroup generating Z^d, and fix a finitely generated Z^d-graded module M over the semigroup algebra k[Q] for a field k. We provide an algorithm to compute a mi…
math.AG2000
Bass Numbers of Semigroup-Graded Local Cohomology
David Helm, Ezra Miller
Given a module M over a ring R which has a grading by a semigroup Q, we present a spectral sequence that computes the local cohomology of M at any Q-graded ideal I in terms of Ext…