9 citations · 39 across the 30 of their papers we have counts for
5 papers · 1 filter
Supersolvable restrictions of reflection arrangements
N. Amend, T. Hoge, G. Roehrle
Let A = (A,V) be a complex hyperplane arrangement and let L(A) denote its intersection lattice. The arrangement A is called supersolvable, provided its lattice L(A) is supersolvabl…
On inductively free Restrictions of Reflection Arrangements
Nils Amend, Torsten Hoge, Gerhard Roehrle
Let W be a finite complex reflection group acting on the complex vector space V and let A(W) = (A(W), V) be the associated reflection arrangement. In an earlier paper by the last t…
Spherical subgroups in simple algebraic groups
Friedrich Knop, Gerhard Roehrle
Let be a simple algebraic group. A closed subgroup of is called spherical provided it has a dense orbit on the flag variety of . Reductive spherical subgroups…
Calculating conjugacy classes in Sylow p-subgroups of finite Chevalley groups of rank six and seven
Simon M. Goodwin, Peter Mosch, Gerhard Roehrle
Let G(q) be a finite Chevalley group, where q is a power of a good prime p, and let U(q) be a Sylow p-subgroup of G(q). Then a generalized version of a conjecture of Higman asserts…
Equivariant K-theory of generalized Steinberg varieties
J. Matthew Douglass, Gerhard Roehrle
We describe the equivariant K-groups of a family of generalized Steinberg varieties that interpolates between the Steinberg variety of a reductive, complex algebraic group and its…