2 papers
math.AG2026
Higgs Grassmannians
Ugo Bruzzo, Michele Graffeo, Beatriz Graña Otero
We review and study the notion of Higgs Grassmannians, which are schemes parametrizing the Higgs subbundles of a given Higgs bundle over a smooth variety. We write their equations…
math.AC2025
Cox-Gorenstein algebras
Ugo Bruzzo, Rodrigo Gondim, Rafael Holanda +1
We study G-graded Artinian algebras having Poincaré duality, considering in particular their Lefschetz properties. We also prove a correspondence between the toric setup and the G…