Moduli and Algebraic Cycles
May 29 - June 2, 2023
This workshop is a follow-up to the research program Moduli and Algebraic Cycles which took place during the fall of 2021. In the workshop we aim to continue exploring the themes and questions related to that programme, and to bring together leading researchers in algebraic geometry. We expect that some of the key topics in the workshop will be related to Hodge theory and period domains, intersection theory on moduli stacks, the geometry of stability conditions for moduli of sheaves, logarithmic geometry, rationality problems, Griffiths groups, and Hyperkähler manifolds.
Seminars Scroll to the next upcoming seminar
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Gavril Farkas: The birational geometry of M_g via non-abelian Brill-Noether theory May 29 09:45 - 10:45 -
Klaus Hulek: The geometry of moduli spaces and ball quotients May 29 11:00 - 12:00 Klaus Hulek: The geometry of moduli spaces and ball quotients
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Nicola Pagani: Brill-Noether cycles on bar{M}_{g,n} I: the classes May 29 13:30 - 14:30 Nicola Pagani: Brill-Noether cycles on bar{M}_{g,n} I: the classes
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Sam Molcho: Brill-Noether cycles on bar{M}_{g,n} II: logarithmic extensions May 29 15:00 - 16:00 Sam Molcho: Brill-Noether cycles on bar{M}_{g,n} II: logarithmic extensions
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Andrea di Lorenzo: Degenerations of twisted maps to algebraic stacks May 30 09:45 - 10:45 Andrea di Lorenzo: Degenerations of twisted maps to algebraic stacks
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Sofia Tirabassi: Characterization of quasi-abelian surfaces May 30 11:00 - 12:00 Sofia Tirabassi: Characterization of quasi-abelian surfaces
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Jørgen Rennemo: Fano varieties with coniveau discrepancy May 30 13:30 - 14:30 Jørgen Rennemo: Fano varieties with coniveau discrepancy
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Georg Oberdieck: Curve counting on the Enriques surface and Borcherds automorphic form May 30 15:00 - 16:00 Georg Oberdieck: Curve counting on the Enriques surface and Borcherds automorphic form
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Andrew Putman: The stable cohomology of the moduli space of curves with level structures May 31 09:45 - 10:45 Andrew Putman: The stable cohomology of the moduli space of curves with level structures
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Hannah Larson: Chow rings of moduli spaces of stable curves May 31 11:00 - 12:00 Hannah Larson: Chow rings of moduli spaces of stable curves
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Dan Abramovich: The Chow ring of a weighted blowup May 31 13:30 - 14:30 Dan Abramovich: The Chow ring of a weighted blowup
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Filippo Viviani: On the Picard group of the stack of G-bundles on families of curves June 01 09:45 - 10:45 Filippo Viviani: On the Picard group of the stack of G-bundles on families of curves
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Piotr Achinger: Regular logarithmic connections June 01 11:00 - 12:00 Piotr Achinger: Regular logarithmic connections
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Jochen Heinloth: Finding proper moduli spaces June 01 13:30 - 14:30 Jochen Heinloth: Finding proper moduli spaces
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Radu Laza: Higher rational and higher Du Bois singularities and applications June 01 15:00 - 16:00 Radu Laza: Higher rational and higher Du Bois singularities and applications
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Samir Canning: Moduli of Degree 2 K3 surfaces June 01 16:30 - 17:30 Samir Canning: Moduli of Degree 2 K3 surfaces
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Siddharth Mathur: Formal GAGA for Brauer classes June 02 09:45 - 10:45 Siddharth Mathur: Formal GAGA for Brauer classes
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Michele Pernice: A_r -stable curves and the (almost) integral Chow ring of M3bar June 02 11:00 - 12:00 Michele Pernice: A_r -stable curves and the (almost) integral Chow ring of M3bar
Recordings
Participants
| Name | University | Country | Arrival and Departure |
|---|---|---|---|
| Dan Abramovich | University: Brown University | Country: United States | Arrival and Departure: |
| Piotr Achinger | University: University of Warsaw | Country: Poland | Arrival and Departure: |
| Jonas Bergström | University: Stockholm University | Country: Sweden | Arrival and Departure: |
| Samir Canning | University: ETH Zürich | Country: Switzerland | Arrival and Departure: |
| Andrea Di Lorenzo | University: Humboldt-Universität zu Berlin | Country: Germany | Arrival and Departure: |
| Sandra Di Rocco | University: KTH Royal Institute of Technology | Country: Sweden | Arrival and Departure: |
| Carel Faber | University: Utrecht University | Country: The Netherlands | Arrival and Departure: |
| Gavril Farkas | University: Humboldt Universität zu Berlin | Country: Germany | Arrival and Departure: |
| Lars Halle | University: University of Bologna | Country: Italy | Arrival and Departure: |
| Jochen Heinloth | University: Universität Duisburg-Essen | Country: Germany | Arrival and Departure: |
| Klaus Hulek | University: Leibniz University Hannover | Country: Germany | Arrival and Departure: |
| Andrew Kresch | University: Universität Zürich | Country: Switzerland | Arrival and Departure: |
| Nikolas Kuhn | University: University of Oslo | Country: Norway | Arrival and Departure: |
| Hannah Larson | University: Harvard University | Country: United States | Arrival and Departure: |
| Radu Laza | University: Stony Brook University | Country: United States | Arrival and Departure: |
| Oliver Leigh | University: Uppsala University | Country: Sweden | Arrival and Departure: |
| Wanmin Liu | University: KTH Royal Institute of Technology | Country: Sweden | Arrival and Departure: |
| Siddharth Mathur | University: Institut de Mathématique d'Orsay | Country: France | Arrival and Departure: |
| Sam Molcho | University: ETH Zürich | Country: Switzerland | Arrival and Departure: |
| Georg Oberdieck | University: KTH Royal Institute of Technology | Country: Sweden | Arrival and Departure: |
| Angela Ortega | University: Humboldt Universität zu Berlin | Country: Germany | Arrival and Departure: |
| John Christian Ottem | University: University of Oslo | Country: Norway | Arrival and Departure: |
| Nicola Pagani | University: University of Liverpool | Country: United Kingdom | Arrival and Departure: |
| Matthias Paulsen | University: Leibniz University Hannover | Country: Germany | Arrival and Departure: |
| Michele Pernice | University: KTH Royal Institute of Technology | Country: Sweden | Arrival and Departure: |
| Dan Petersen | University: Stockholm University | Country: Sweden | Arrival and Departure: |
| Andrew Putman | University: University of Notre Dame | Country: United States | Arrival and Departure: |
| Ming Hao Quek (Online) | University: Brown University | Country: United States | Arrival and Departure: |
| Jørgen Rennemo | University: University of Oslo | Country: Norway | Arrival and Departure: |
| Andrea Ricolfi | University: International School for Advanced Studies (SISSA) | Country: Italy | Arrival and Departure: |
| David Rydh | University: KTH Royal Institute of Technology | Country: Sweden | Arrival and Departure: |
| Luca Schaffler | University: Roma Tre University | Country: Italy | Arrival and Departure: |
| Roy Skjelnes | University: KTH Royal Institute of Technology | Country: Sweden | Arrival and Departure: |
| Tuomas Tajakka | University: Stockholm University | Country: Sweden | Arrival and Departure: |
| Sofia Tirabassi | University: Stockholm University | Country: Sweden | Arrival and Departure: |
| Gerard van der Geer | University: Universiteit van Amsterdam | Country: The Netherlands | Arrival and Departure: |
| Filippo Viviani | University: Roma Tre University | Country: Italy | Arrival and Departure: |
| Angelina Zheng | University: Roma Tre University | Country: Italy | Arrival and Departure: |