2 papers
math.AG2026
Flat Cohomological Purity for Syntomic Schemes over Valuation Rings
Arnab Kundu
Grothendieck's cohomological purity predicts that the cohomology of a scheme is insensitive to removing a closed subscheme of sufficiently high codimension. In this article, we est…
math.AG2026
Reductification of parahoric group schemes
Arnab Kundu
Parahoric group schemes are certain possibly non-reductive, smooth, affine integral models of reductive group schemes defined over a henselian discretely valued field whose res…