Working seminar
Complex Geometry group, Bonn
Summer semester 2023
Fridays, 16:00 - 18:00 in April / May / June / July 2023
Fridays, 16:00 - 18:00 in April / May / June / July 2023
Math. Institute (Endenicher Allee 60), room 0.011
The first part of the seminar is devoted to Lagrangian fibrations on Hyperkahler manifolds and their Brauer twists (#twist-seminar-2023), and the rest of the seminar will be talks on preprints / work in progress by the group members. Everyone is welcome to attend.
14.04: Jiexiang Huang, Xianyu Hu, Daniel Huybrechts: Eliptic K3s, moduli spaces, Brauer classes, proof of the Ogg-Shafarevich isomorphism; twisted Hodge structures
14.04: Jiexiang Huang, Xianyu Hu, Daniel Huybrechts: Eliptic K3s, moduli spaces, Brauer classes, proof of the Ogg-Shafarevich isomorphism; twisted Hodge structures
21.04: Dominique Mattei: Moduli spaces of sheaves on K3s with focus on Beauville-Mukai systems, i.e. relative compactified Jacobians of complete linear systems on K3s, including Arinkin's work on compactified Jacobians
21.04: Dominique Mattei: Moduli spaces of sheaves on K3s with focus on Beauville-Mukai systems, i.e. relative compactified Jacobians of complete linear systems on K3s, including Arinkin's work on compactified Jacobians
28.04: Yoon-Joo Kim: Overview of Lagrangian fibrations on HK varieties (Matsushita's conjecture, examples), versions of duality of Lagrangian fibrations (following Sawon, Kim), what can be these fibrations twisted by (following Sawon)
28.04: Yoon-Joo Kim: Overview of Lagrangian fibrations on HK varieties (Matsushita's conjecture, examples), versions of duality of Lagrangian fibrations (following Sawon, Kim), what can be these fibrations twisted by (following Sawon)
5.05: Kuan-Wen Lai, Evgeny Shinder: Shafarevich-Tate theory for Lagrangian fibrations (following Abasheva-Rogov and Markman)
5.05: Kuan-Wen Lai, Evgeny Shinder: Shafarevich-Tate theory for Lagrangian fibrations (following Abasheva-Rogov and Markman)
12.05: Yagna Dutta, Dominique Mattei, Evgeny Shinder: Prym-fibrations, OG10 and its twists (following Laza-Sacca-Voisin, Voisin, Sacca)
12.05: Yagna Dutta, Dominique Mattei, Evgeny Shinder: Prym-fibrations, OG10 and its twists (following Laza-Sacca-Voisin, Voisin, Sacca)
19.05: Gebhard Martin, Giacomo Mezzedimi, Kuan-Wen Lai: Formal Brauer groups, K3 and HK in char. p
19.05: Gebhard Martin, Giacomo Mezzedimi, Kuan-Wen Lai: Formal Brauer groups, K3 and HK in char. p
26.05: Yoon-Joo Kim & the team: Hodge numbers of O'Grady 10, following de Cataldo, Rapagnetta and Sacca
26.05: Yoon-Joo Kim & the team: Hodge numbers of O'Grady 10, following de Cataldo, Rapagnetta and Sacca
2.06: no seminar
2.06: no seminar
9.06: Nick Addington, Evgeny Shinder & the team: Derived equivalence of twisted Lagrangian fibrations, following Sawon 2004, Sawon 2008, Addington-Donovan-Meachan.
9.06: Nick Addington, Evgeny Shinder & the team: Derived equivalence of twisted Lagrangian fibrations, following Sawon 2004, Sawon 2008, Addington-Donovan-Meachan.
16.06: no seminar
16.06: no seminar
7.07: Olivia Dumitrescu, Daniel Huybrechts, Yoon-Joo Kim, Giacomo Mezzedimi
7.07: Olivia Dumitrescu, Daniel Huybrechts, Yoon-Joo Kim, Giacomo Mezzedimi
30 minutes recent research or work-in-progress talks
30 minutes recent research or work-in-progress talks
14.07: Celine Fietz, Moritz Hartlieb, Mauro Varesco, Reinder Meinsma
14.07: Celine Fietz, Moritz Hartlieb, Mauro Varesco, Reinder Meinsma
30 minutes recent research or work in progress talks
30 minutes recent research or work in progress talks
End of semester celebration
End of semester celebration