4 papers · 1 filter
(Equivariant) Cohomology of Homogeneous Spaces Associated with Composition Algebras
Mahir Bilen Can, Ana Casimiro, Ferruh Ãzbudak
We study homogeneous spaces arising from embeddings of associative composition algebras of dimensions 2 and 4, with particular emphasis on the Hamiltonian quaternion algebra. For i…
Nearly Toric Schubert Varieties of Type A
Mahir Bilen Can, Nestor Diaz Morera
A notion of a nearly toric variety is introduced. The examples of nearly toric varieties in the context of Schubert varieties are discussed. In particular, combinatorial characteri…
From Schubert Varieties to Doubly-Spherical Varieties
Mahir Bilen Can, S. Senthamarai Kannan, Pinakinath Saha
Horospherical Schubert varieties are determined. It is shown that the stabilizer of an arbitrary point in a Schubert variety is a strongly solvable algebraic group. The connectedne…
Irreducible Unipotent Numerical Monoids
Mahir Bilen Can, Naufil Sakran
In our earlier article~\cite{CanSakran} we initiated a study of the complement-finite submonoids of the group of integer points of a unipotent linear algebraic group. In the presen…