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The heart fan of an abelian category
December 12, 2024 at 14:15 – 15:15 CET
David Ploog (Stavanger)
Abstract: To an abelian category such as coherent sheaves on a projective variety or modules over a finite-dimensional algebra, I associate a fan of convex cones. This fan reflects homological properties of the category. It contains the g-fan of representation theory and is related to the stability conditions.