4 citations · 4 across the 2 of their papers we have counts for
6 papers
Unstable loci in flag varieties and variation of quotients
Henrik Seppänen, Valdemar V. Tsanov
We consider the action of a semisimple subgroup of a semisimple complex group on the flag variety , and the linearizations of this action by line bundles $\math…
Global Okounkov bodies for Bott-Samelson varieties
David Schmitz, Henrik Seppänen
We use the theory of Mori dream spaces to prove that the global Okounkov body of a Bott-Samelson variety with respect to a natural flag of subvarieties is rational polyhedral. In f…
On the polyhedrality of global Okounkov bodies
David Schmitz, Henrik Seppänen
We prove that the existence of a finite Minkowski base for Okounkov bodies on a smooth projective variety with respect to an admissible flag implies rational polyhedrality of the g…
Symplectic branching laws and Hermitian symmetric spaces
Benjamin Schwarz, Henrik Seppänen
Let be a complex simple Lie group, and let be a maximal compact subgroup. Assume that admits a homogenous space which is a compact Hermitian sym…
Koppelman formulas on flag manifolds
Håkan Samuelsson, Henrik Seppänen
We construct Koppelman formulas on manifolds of flags in $\C^N$ for forms with values in any holomorphic line bundle as well as in the tautological vector bundles and their duals.…
Branching laws for discrete Wallach points
Stéphane Merigon, Henrik Seppänen
We consider the (projective) representations of the group of holomorphic automorphisms of a symmetric tube domain that are obtained by analytic continuation of the hol…