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math.AG2026
Relative Bruhat decomposition of wonderful compactification
Fei Chen, Shang Li
In the seminal paper of Borel and Tits about reductive groups, they show some fundamental results about Bruhat cells with respect to a minimal parabolic subgroup, e.g., relative Br…
math.AG2025
Wonderful embedding for group schemes in the Bruhat--Tits theory
Shang Li
For a reductive group over a discretely valued Henselian field , using valuations of root datum and concave functions, the Bruhat--Tits theory defines an important class of…