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math.AG2026
Log Calabi-Yau compactifications of character varieties
Hülya Argüz, Pierrick Bousseau
We prove that the character varieties of compact oriented surfaces and the generic relative character varieties of punctured surfaces admit di…
math.AG2026
Geometric helices on del Pezzo surfaces from tilting
Pierrick Bousseau
We prove that all geometric helices in the derived category of coherent sheaves on a del Pezzo surface are related by a sequence of elementary operations: rotation, shifting, ortho…