Showing math.AGShow all
2 papers · 1 filter
math.AG2025
Regular semisimple Hessenberg varieties with cohomology rings generated in degree two
Mikiya Masuda, Takashi Sato
A regular semisimple Hessenberg variety is a smooth subvariety of the flag variety determined by a square matrix with distinct eigenvalues and a Hessenberg…
math.AG2024
Torus orbit closures in the flag variety
Eunjeong Lee, Mikiya Masuda, Seonjeong Park
The study of torus orbit closures in the (complete) flag variety was initiated by Klyachko and Gelfand--Serganova in the mid-1980s, but it seems that not much has been done since t…