2 papers
math.AG2026
Automorphism groups of toroidal horospherical varieties
Lorenzo Barban, DongSeon Hwang, Minseong Kwon
We establish a structure theorem for the connected automorphism groups of smooth complete toroidal horospherical varieties, that is, toric fibrations over rational homogeneous spac…
math.AG2025
Del Pezzo surfaces with four log terminal singularities
Grigory Belousov, DongSeon Hwang
We classify del Pezzo surfaces with Picard number is equal to one and with four log terminal singular points.