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Heike Harenbrock

Mittagsseminar zur Arithmetik: Adam Dauser (MPI Bonn): Twisted Six Functor Formalisms

Tuesday, 04.11.2025 10:15 im Raum SRZ 216/217

Mathematik und Informatik

Given a six functor formalism, one can parametrise the ways to twist the f_!-functors a bit without changing f^*. Using the same principles, one obtains general constructions of monodromic and gerbe-twisted sheaves. The usual construction of six functor formalisms via factorisation into classes I and P by Liu-Zheng assumes that morphism in the intersection of I and P are truncated. In joint work in progress with Will Fisher, we show that without this assumption, one can still construct a twisted six functor formalism.



Angelegt am 04.11.2025 von Heike Harenbrock
Geändert am 04.11.2025 von Heike Harenbrock
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