24 citations · 47 across the 18 of their papers we have counts for
4 papers · 1 filter
Length and decomposition of the cohomology of the complement to a hyperplane arrangement
Rikard Bøgvad, Iara Gonçalves
Let be a hyperplane arrangement in . We show that the number of decomposition factors as a perverse sheaf of the direct image of the co…
Decomposition factors of D-modules on hyperplane configurations in general position
Tilahun Abebaw, Rikard Bogvad
We calculate the decomposition series of the D-module defined as the push-forward of a rank one linear system on the complement of a normal crossings hyperplane configuration and u…
Decomposition of D-modules over a hyperplane arrangement in the plane
Tilahun Abebaw, Rikard Bøgvad
We consider the D-module defined as the push-forward of a rank one linear system on the complement of a central plane hyperplane arrangement, and calculate its decomposition series…
Geometric interplay between function subspaces and their rings of differential operators
Rikard Bögvad, Rolf Källström
We study, in the setting of algebraic varieties, finite-dimensional spaces of functions V that are invariant under a ring D^V of differential operators, and give conditions under w…