February 8, 2023 in room 7.530 in PWR 57
13:15 - 14:00 Luca Remke (University of Stuttgart)„Ko-Higgsbündel auf projektiven Räumen“
January 18, 2023 in lecture theatre 57.04 PWR 57
15:45 - 16:30 Anda Degeratu (University of Stuttgart)„Geometrical McKay Correspondences“
16:45 - 17:30 Linda Hoyer (RWTH Aachen) „Orthogonal determinants“
January 18, 2023 in room 8.122 in PWR 57
10:00 - 11:00 Maxim Smirnov (University of Augsburg) „Residual categories for Grassmannians“
Exceptional collections in derived categories of coherent sheaves have a long history going back to the pioneering work of A. Beilinson. After recalling the general setup, I will concentrate on some recent developments inspired by the homological mirror symmetry. Namely, I will define residual categories of Lefschetz decompositions and discuss a conjectural relation between the structure of quantum cohomology and residual categories. I will illustrate this relationship in the case of some isotropic Grassmannians. The talk is based on the joint work with Alexander Kuznetsov.
January 17, 2023 in room 7.530
16:15-17:45 Maxim Smirnov (University of Augsburg) „Quantum cohomology of coadjoint varieties“
Quantum cohomology is defined by deforming the usual cup-product using the genus zero Gromov-Witten invariants. We’ll begin with a background on quantum cohomology and its role in mirror symmetry. Then we will discuss properties of quantum cohomology, both small and big, of coadjoint varieties of simple algebraic groups. If time permits, we’ll make predictions on the structure of the derived category of coherent sheaves of coadjoint varieties. The talk is based on the joint work with Nicolas Perrin.
December 1st, 2022 SWAG in Tübingen
November 16, 2022 in room 7.122
15:45 - 16:30 Frederik Witt (University of Stuttgart)
„Exceptional sequences of line bundles on toric varieties of Picard rank 2“
November 9, 2022 in room 7.530
13:30 - 14:15 Kathrin Hertäg (University of Stuttgart)
„Critical Brain Hypothesis from a Mathematical Point of View“