4 citations · 5 across the 4 of their papers we have counts for
6 papers
Closures of Steinberg fibers in twisted wonderful compactifications
Xuhua He, Jesper Funch Thomsen
By a case-free approach we give a precise description of the closure of a Steinberg fiber within a twisted wonderful compactification of a simple linear algebraic group. In the non…
Frobenius splitting of equivariant closures of regular conjugacy classes
Jesper Funch Thomsen
Let denote a connected semisimple and simply connected algebraic group over an algebraically closed field of positive characteristic and let denote a regular element of…
F-regularity of large Schubert varieties
Michel Brion, Jesper Funch Thomsen
Let G denote a connected reductive algebraic group over an algebraically closed field k and let X denote a projective G x G-equivariant embedding of G. The large Schubert varieties…
A new realization of the cohomology of Springer fibers
Shrawan Kumar, Jesper Funch Thomsen
In this note we give a geometric realization of the cohomology of Springer fibers in type A. More precisely, we describe the cohomology by the coordinate ring of a scheme theoretic…
A conjectural generalization of n! result to arbitrary groups
Shrawan Kumar, Jesper Funch Thomsen
We relate the n! conjecture (by Garsia and Haiman) to the geometry of principal nilpotent pairs, and state a conjecture generalizing the n! conjecture to arbitrary semisimple algeb…
Frobenius splitting of Hilbert schemes of points on surfaces
Shrawan Kumar, Jesper Funch Thomsen
Let X be a quasiprojective smooth surface defined over an algebraically closed field of positive characteristic. We show that if X is Frobenius split then so is the Hilbert scheme…