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math.AG2023
Kashiwara conjugation and the enhanced Riemann-Hilbert correspondence
Andreas Hohl
We study some aspects of conjugation and descent in the context of the irregular Riemann-Hilbert correspondence of D'Agnolo-Kashiwara. First, we give a proof of the fact that Kashi…
math.AG2023
Unusual functorialities for weakly constructible sheaves
Andreas Hohl, Pierre Schapira
We prove that various morphisms related to the six Grothendieck operations on sheaves become isomorphisms when restricted to (weakly) constructible sheaves. To this end, we first s…
math.AG2023★ 2 cited
An introduction to field extensions and Galois descent for sheaves of vector spaces
Andreas Hohl
We study extension of scalars for sheaves of vector spaces, assembling results that follow from well-known statements about vector spaces, but also developing some complements. In…