Moduli and Algebraic Cycles

August 30 - December 10, 2021

The aim of this program is to explore central questions related to moduli spaces, algebraic cycles, and enumerative geometry. These are subjects at the very heart of geometry, with origins in the Italian and German schools of algebraic geometry from the 19th century. But they are also closely connected with modern developments such as the mathematics of string theory and the theory of motives.

The notions of cycles and moduli are intertwined in many subtle ways, often by means of various cohomology theories for algebraic varieties, or the geometry of period domains. One example is Deligne’s theorem about Hodge cycles on abelian varieties, which is perhaps the strongest known result in the direction of the Hodge conjecture, and whose proof uses the moduli theory of abelian varieties. As another example, the recent proof by Charles (and Lieblich-Maulik-Snowden) of the Tate conjecture for K3 surfaces over finite fields passes via the moduli theory of K3 surfaces.

We expect some specific focus areas of the program to be tautological classes, logarithmic geometry, moduli spaces of sheaves, hyperkähler manifolds, and rationality questions.

During the program, there will be two workshops with thematically focused talks:

 

Participation in the program is by invitation only.

 

Seminars Scroll to the next upcoming seminar

  • Blown-up toric surfaces with non-polyhedral effective cone and applications to moduli spaces August 31 15:00 - 16:00

    Blown-up toric surfaces with non-polyhedral effective cone and applications to moduli spaces

  • Degenerations of Hilbert schemes and relative VGIT September 02 13:00 - 14:00

    Degenerations of Hilbert schemes and relative VGIT

  • Variation of stable birational type and bounds for complete intersections September 02 14:30 - 15:30

    Variation of stable birational type and bounds for complete intersections

  • Generically finite Prym maps September 07 13:15 - 14:15

    Generically finite Prym maps

  • Nonabelian DT theory from abelian DT theory September 07 14:30 - 15:30

    Nonabelian DT theory from abelian DT theory

  • Blowup formulas for virtual sheaf-theoretic invariants on projective surfaces September 09 14:00 - 15:00

    Blowup formulas for virtual sheaf-theoretic invariants on projective surfaces

  • Elliptic K3 surfaces: monodromy versus Shimada strata September 09 15:30 - 16:30

    Elliptic K3 surfaces: monodromy versus Shimada strata

  • The integral Chow ring of the stack of stable 1-pointed curves of genus two September 14 13:15 - 14:15

    The integral Chow ring of the stack of stable 1-pointed curves of genus two

  • The local structure and coherent completeness of algebraic stacks September 14 14:30 - 15:30

    The local structure and coherent completeness of algebraic stacks

  • The degree of algebraic cycles on hypersurfaces September 16 14:00 - 15:00

    The degree of algebraic cycles on hypersurfaces

  • On the cohomology of moduli spaces of stable pointed curves: genus 4 and small n, and the vanishing of H^7 and H^9 September 16 15:30 - 16:30

    On the cohomology of moduli spaces of stable pointed curves: genus 4 and small n, and the vanishing of H^7 and H^9

  • Searching for the impossible Azumaya algebra September 21 13:15 - 14:15

    Searching for the impossible Azumaya algebra

  • Smooth Hilbert schemes, a classification. September 21 14:30 - 15:30

    Smooth Hilbert schemes, a classification.

  • Lefschetz theorems via localization September 23 14:00 - 15:00

    Lefschetz theorems via localization

  • Degeneration of spectral sequences and formality of DG algebras associated to Lagrangians in hyperkähler varieties September 23 15:30 - 16:30

    Degeneration of spectral sequences and formality of DG algebras associated to Lagrangians in hyperkähler varieties

  • Nodal quintic surfaces and lines on cubic fourfolds September 28 13:15 - 14:15

    Nodal quintic surfaces and lines on cubic fourfolds

  • A note on Hilbert schemes of points of K3 surfaces September 28 14:30 - 15:30

    A note on Hilbert schemes of points of K3 surfaces

  • Higher Abel—Jacobi invariants of torsion cycles modulo algebraic equivalence September 30 14:00 - 15:00

    Higher Abel—Jacobi invariants of torsion cycles modulo algebraic equivalence

  • A computation of Sym^2(Pic(Hbar_g)) September 30 15:30 - 16:30

    A computation of Sym^2(Pic(Hbar_g))

  • Theta groups and projective models of HK varieties October 05 13:15 - 14:15

    Theta groups and projective models of HK varieties

  • Donaldson-Thomas theory of the quantum Fermat quintic October 05 14:30 - 15:30

    Donaldson-Thomas theory of the quantum Fermat quintic

  • Koszul modules in algebraic geometry October 07 14:00 - 15:00

    Koszul modules in algebraic geometry

  • Logarithmic resolution of singularities via multi-weighted blow-ups October 07 15:30 - 16:30

    Logarithmic resolution of singularities via multi-weighted blow-ups

  • Antisymplectic involutions on projective hyperkähler manifolds October 08 14:00 - 15:00

    Antisymplectic involutions on projective hyperkähler manifolds

  • On the algebraicity of the Hodge locus October 12 13:15 - 14:15

    On the algebraicity of the Hodge locus

  • Product identities in the Chow rings of hyperkähler manifolds October 12 14:30 - 15:30

    Product identities in the Chow rings of hyperkähler manifolds

  • Stable irrationality of a (2,3)-complete intersection fourfold October 14 10:00 - 11:00

    Stable irrationality of a (2,3)-complete intersection fourfold

  • An arithmetic valuative criterion for properness for tame stacks, and applications October 14 14:00 - 15:00

    An arithmetic valuative criterion for properness for tame stacks, and applications

  • The integral Chow ring of the stack of hyperelliptic Weierstrass points October 14 15:30 - 16:30

    The integral Chow ring of the stack of hyperelliptic Weierstrass points

  • Workshop: Moduli and periods for Calabi-Yau threefolds October 18 09:45 - 10:45

    Workshop: Moduli and periods for Calabi-Yau threefolds

  • Workshop: Algebraic cycles on Gushel-Mukai varieties October 18 11:00 - 12:00

    Workshop: Algebraic cycles on Gushel-Mukai varieties

  • Workshop: Curves of genus three and modular forms October 18 13:30 - 14:30

    Workshop: Curves of genus three and modular forms

  • Workshop: A motivic view on genus zero string amplitudes October 18 15:00 - 16:00

    Workshop: A motivic view on genus zero string amplitudes

  • Workshop: A non-hypergeometric E-function October 19 09:45 - 10:45

    Workshop: A non-hypergeometric E-function

  • Workshop: Motives of moduli spaces of Higgs bundles October 19 11:00 - 12:00

    Workshop: Motives of moduli spaces of Higgs bundles

  • Workshop: On the ring of functions on formal-analytic schemes October 19 13:30 - 14:30

    Workshop: On the ring of functions on formal-analytic schemes

  • Workshop: Rigid systems: arithmetic aspects October 20 09:45 - 10:45

    Workshop: Rigid systems: arithmetic aspects

  • Workshop: Anabelian representation of the motivic Galois group October 20 11:00 - 12:00

    Workshop: Anabelian representation of the motivic Galois group

  • Workshop: Moduli of Galois covers of curves October 20 13:30 - 14:30

    Workshop: Moduli of Galois covers of curves

  • Workshop: Motivic mirror symmetry for Higgs bundles October 20 15:00 - 16:00

    Workshop: Motivic mirror symmetry for Higgs bundles

  • Workshop: Low degree Hurwitz stacks in the Grothendieck ring October 21 09:45 - 10:45

    Workshop: Low degree Hurwitz stacks in the Grothendieck ring

  • Workshop October 21 11:00 - 12:00

    Workshop

  • Workshop: Stability Conditions and Moduli October 21 13:30 - 14:30

    Workshop: Stability Conditions and Moduli

  • Workshop: The Ceresa cycle October 21 15:00 - 16:00

    Workshop: The Ceresa cycle

  • Workshop: Sparsity of Integral Points on Moduli Spaces of Varieties October 22 09:45 - 10:45

    Workshop: Sparsity of Integral Points on Moduli Spaces of Varieties

  • Workshop: Hodge theory of the Putman-Wieland conjecture October 22 11:00 - 12:00

    Workshop: Hodge theory of the Putman-Wieland conjecture

  • Workshop October 22 13:30 - 14:30

    Workshop

  • K-theoretic sheaf counting invariants on C^4 October 26 13:15 - 14:15

    K-theoretic sheaf counting invariants on C^4

  • Geometry of wall crossings for the Hilbert scheme of skew lines October 26 14:30 - 15:30

    Geometry of wall crossings for the Hilbert scheme of skew lines

  • Virasoro constraints for moduli spaces of sheaves on surfaces October 28 14:00 - 15:00

    Virasoro constraints for moduli spaces of sheaves on surfaces

  • Twisted K-theory in motivic homotopy theory October 28 15:30 - 16:30

    Twisted K-theory in motivic homotopy theory

  • r-Spin Hurwitz numbers via Stable Maps with Divisible Ramification November 02 13:15 - 14:15

    r-Spin Hurwitz numbers via Stable Maps with Divisible Ramification

  • An alternative way to compute modular forms November 02 14:30 - 15:30

    An alternative way to compute modular forms

  • Remarks on bundles on hyper-Kahler manifolds November 04 14:00 - 15:00

    Remarks on bundles on hyper-Kahler manifolds

  • $K_2$ and quantum curves November 04 15:30 - 16:30

    $K_2$ and quantum curves

  • On the Brauer group of bielliptic surfaces November 09 14:30 - 15:30

    On the Brauer group of bielliptic surfaces

  • Asymptotic properties of the Ceresa cycle November 10 13:15 - 14:15

    Asymptotic properties of the Ceresa cycle

  • Algebraic K-theory and projective bundle formula November 11 14:00 - 15:00

    Algebraic K-theory and projective bundle formula

  • Rational homotopy theory in A1-algebraic topology November 11 15:30 - 16:30

    Rational homotopy theory in A1-algebraic topology

  • Artin fans, piecewise polynomials and the double ramification cycle November 15 09:45 - 10:45

    Artin fans, piecewise polynomials and the double ramification cycle

  • Hilbert scheme of points and global singularity theory November 15 11:00 - 12:00

    Hilbert scheme of points and global singularity theory

  • TBA November 15 13:30 - 14:30

    TBA

  • TBA November 15 15:00 - 16:00

    TBA

  • On the Universal Jacobian: algebraic, tropical and logarithmic aspects November 16 09:45 - 10:45

    On the Universal Jacobian: algebraic, tropical and logarithmic aspects

  • The Chow rings of moduli spaces of elliptic surfaces November 16 11:00 - 12:00

    The Chow rings of moduli spaces of elliptic surfaces

  • Moduli spaces of stable objects in the Kuznetsov component of cubic threefolds November 16 13:30 - 14:30

    Moduli spaces of stable objects in the Kuznetsov component of cubic threefolds

  • Motives of Algebraic Stacks November 16 15:00 - 16:00

    Motives of Algebraic Stacks

  • On logarithmic compactification of stratas of Hodge bundle November 17 09:45 - 10:45

    On logarithmic compactification of stratas of Hodge bundle

  • Level structures on logarithmic (and tropical) curves November 17 11:00 - 12:00

    Level structures on logarithmic (and tropical) curves

  • Specialization for the pro-etale fundamental group November 17 13:30 - 14:30

    Specialization for the pro-etale fundamental group

  • Framed logarithmic curves and the formality conjecture November 17 15:00 - 16:00

    Framed logarithmic curves and the formality conjecture

  • Geometry of fine compactified Jacobians in genus 1 November 18 09:45 - 10:45

    Geometry of fine compactified Jacobians in genus 1

  • Compact Kähler manifolds with no projective specialization November 18 11:00 - 12:00

    Compact Kähler manifolds with no projective specialization

  • Wall-crossing on fine compactified universal Jacobians November 18 13:30 - 14:30

    Wall-crossing on fine compactified universal Jacobians

  • The birational geometry of M_g: new developments via non-abelian Brill-Noether theory and tropical geometry November 18 15:00 - 16:00

    The birational geometry of M_g: new developments via non-abelian Brill-Noether theory and tropical geometry

  • Compactifying moduli of pointed projective spaces up to automorphisms November 19 09:45 - 10:45

    Compactifying moduli of pointed projective spaces up to automorphisms

  • Brauer groups of moduli of hyperelliptic curves and their compactifications November 19 11:00 - 12:00

    Brauer groups of moduli of hyperelliptic curves and their compactifications

  • TBA November 19 13:30 - 14:30

    TBA

  • Power sum varieties of quaternary quartics November 23 13:15 - 14:15

    Power sum varieties of quaternary quartics

  • Uhlenbeck compactification as a Bridgeland moduli space November 23 14:30 - 15:30

    Uhlenbeck compactification as a Bridgeland moduli space

  • Abelian cycles in the homology of Torelli groups November 25 14:00 - 15:00

    Abelian cycles in the homology of Torelli groups

  • Graded algebras, projective spectra and blow-ups in derived algebraic geometry November 25 15:30 - 16:30

    Graded algebras, projective spectra and blow-ups in derived algebraic geometry

  • Refined Riemann-Roch for degenerations of Calabi-Yau manifolds and a mirror symmetry-conjecture November 30 13:15 - 14:15

    Refined Riemann-Roch for degenerations of Calabi-Yau manifolds and a mirror symmetry-conjecture

  • Functorial intersection theory and moduli spaces of flat vector bundles on curves November 30 14:30 - 15:30

    Functorial intersection theory and moduli spaces of flat vector bundles on curves

  • Oriented matroids and real toric varieties December 02 14:00 - 15:00

    Oriented matroids and real toric varieties

  • Endoscopic p-adic modular forms for SL(2) December 02 15:30 - 16:30

    Endoscopic p-adic modular forms for SL(2)

  • A general blowup-principle for compact support extensions of functors December 07 11:00 - 12:00

    A general blowup-principle for compact support extensions of functors

  • Motivic cohomology reimagined December 07 13:15 - 14:15

    Motivic cohomology reimagined

  • Measures of association for algebraic varieties December 09 14:00 - 15:00

    Measures of association for algebraic varieties

  • Grothendieck–Serre in the quasi-split unramified case December 09 15:30 - 16:30

    Grothendieck–Serre in the quasi-split unramified case

Participants

Name University Country Arrival and Departure
Dan
Abramovich
University: Brown University City: United States Arrival and Departure: Sep 1 - Oct 24, 2021
Piotr
Achinger
University: Institute of Mathematics, Warsaw City: Poland Arrival and Departure: Nov 8 - Nov 20, 2021
Eric
Ahlqvist
University: KTH Royal Institute of Technology City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Jarod
Alper
University: University of Washington City: United States Arrival and Departure: Aug 30 - Sep 25, 2021
Joseph
Ayoub
University: University of Zurich City: Switzerland Arrival and Departure: Oct 18 - Oct 21, 2021
Arnaud
Beauville
University: Université Côte d'Azur City: France Arrival and Departure: Oct 17 - Oct 29, 2021
Kaj
Behrend
University: University of British Columbia City: Canada Arrival and Departure: Oct 13, Aug 30 - Oct 23, Oct 10, 2021
Pieter
Belmans (Online)
University: University of Luxembourg City: Luxembourg Arrival and Departure: -
Gergely
Berczi
University: Aarhus University City: Denmark Arrival and Departure: Nov 14 - Nov 19, 2021
Jonas
Bergström
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Olof
Bergvall
University: University of Gävle City: Sweden Arrival and Departure: -
Aaron
Bertram
University: University of Utah City: United States Arrival and Departure: Sep 2 - Nov 20, 2021
Rikard
Bögvad
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Yohan
Brunebarbe
University: Université de Bordeaux City: France Arrival and Departure: Oct 11 - Oct 31, 2021
Jim
Bryan
University: University of British Columbia City: Canada Arrival and Departure: Aug 30 - Dec 10, 2021
Samir
Canning
University: ETH Zürich City: Switzerland Arrival and Departure: Nov 6 - Nov 21, 2021
Magnus
Carlson
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Ana-Maria
Castravet
University: University of Versailles Saint-Quentin-en-Yvelines City: France Arrival and Departure: Aug 30, Nov 28 - Sep 17, Dec 3, 2021
Kęstutis
Česnavičius
University: Université Paris-Saclay City: France Arrival and Departure: Dec 5 - Dec 10, 2021
Melody
Chan
University: Brown University City: United States Arrival and Departure: Aug 30 - Dec 10, 2021
François
Charles
University: Orsay University City: France Arrival and Departure: Oct 17 - Oct 23, 2021
Qile
Chen (Online)
University: Boston College City: United States Arrival and Departure: -
Simon
Cooper
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
David
Corwin
University: Massachusetts Institute of Technology City: United States Arrival and Departure: Oct 17 - Oct 25, 2021
Ben
Davison (Online)
University: University of Edinburgh City: United Kingdom Arrival and Departure: -
Mark
De Cataldo (Online)
University: Stony Brook University City: United States Arrival and Departure: -
Robin
de Jong (Online)
University: Universiteit Leiden City: The Netherlands Arrival and Departure: -
Sjoerd
de Vries
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Neeraj
Deshmukh
University: Universität Zürich City: Switzerland Arrival and Departure: Nov 14 - Dec 10, 2021
Andrea
Di Lorenzo
University: Humboldt-Universität zu Berlin City: Germany Arrival and Departure: Sep 6 - Oct 24, 2021
Sandra
Di Rocco
University: KTH Royal Institute of Technology City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Dan
Edidin
University: University of Missouri City: United States Arrival and Departure: Oct 3 - Oct 20, 2021
Elden
Elmanto
University: Harvard University City: United States Arrival and Departure: Nov 26 - Dec 8, 2021
Dennis
Eriksson
University: Chalmers / University of Gothenburg City: Sweden Arrival and Departure: Nov 28 - Dec 3, 2021
Hélène
Esnault
University: Freie Universität Berlin City: Germany Arrival and Departure: Oct 11 - Oct 25, 2021
Carel
Faber
University: Utrecht University City: The Netherlands Arrival and Departure: Sep 4, Nov 1 - Sep 30, Nov 30, 2021
Barbara
Fantechi (Online)
University: The International School for Advanced Studies (SISSA) City: Italy Arrival and Departure: -
Gavril
Farkas
University: Humboldt Universität zu Berlin City: Germany Arrival and Departure: Oct 3, Nov 10 - Oct 15, Nov 20, 2021
Soheyla
Feyzbakhsh (Online)
University: City: Arrival and Departure: -
Laure
Flapan
University: Michigan State University City: United States Arrival and Departure: Oct 4 - Oct 17, 2021
Gerard
Freixas i Montplet
University: Institut de Mathématiques de Jussieu - Paris Rive Gauche City: France Arrival and Departure: Nov 28 - Dec 3, 2021
Javier
Fresán
University: École Polytechnique City: France Arrival and Departure: Oct 17 - Oct 23, 2021
Wushi
Goldring
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Frank
Gounelas (Online)
University: University of Göttingen City: Germany Arrival and Departure: -
Daniel
Greb (Online)
University: University of Duisburg-Essen City: Germany Arrival and Departure: -
Samuel
Grushevsky
University: Stony Brook University City: United States Arrival and Departure: Nov 16 - Nov 24, 2021
Martin
Gulbrandsen
University: University of Stavanger City: Norway Arrival and Departure: Oct 18 - Nov 5, 2021
Lukas
Gustafsson
University: KTH Royal Institute of Technology City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Gabriela
Guzman
University: Institute of Mathematics of the Polish Academy of Sciences City: Poland Arrival and Departure: Nov 8 - Nov 20, 2021
Richard
Hain (Online)
University: Duke University City: United States Arrival and Departure: -
Louis
Hainaut
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Jack
Hall (Online)
University: University of Melbourne City: Australia Arrival and Departure: Nov 15 - Dec 10, 2021
Lars Halvard
Halle
University: University of Bologna City: Italy Arrival and Departure: Aug 30 - Sep 17, 2021
Daniel
Halpern-Leistner (Online)
University: Cornell University City: United States Arrival and Departure: -
Isac
Hedén
University: KTH Royal Institute of Technology City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Jochen
Heinloth
University: Universität Duisburg-Essen City: Germany Arrival and Departure: Aug 30 - Nov 19, 2021
Jeroen
Hekking
University: KTH Royal Institute of Technology City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
David
Holmes (Online)
University: Universiteit Leiden City: The Netherlands Arrival and Departure: -
Tim
Hosgood
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Victoria
Hoskins (Online)
University: Radboud University City: The Netherlands Arrival and Departure: -
Marc
Hoyois (Online)
University: Universität Regensburg City: Germany Arrival and Departure: -
Zhengning
Hu (Online)
University: University of Missouri City: United States Arrival and Departure: -
Klaus
Hulek
University: University of Hannover City: Germany Arrival and Departure: Aug 29 - Oct 9, 2021
Daniel
Huybrechts
University: University of Bonn City: Germany Arrival and Departure: -
Ryomei
Iwasa
University: University of Copenhagen City: Denmark Arrival and Departure: Nov 1 - Nov 14, 2021
Felix
Janda (Online)
University: Michigan State University City: United States Arrival and Departure: -
Ariyan
Javanpeykar (Online)
University: Johannes Gutenberg-Universität Mainz City: Germany Arrival and Departure: -
Christian
Johansson
University: Chalmers / University of Gothenburg City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Rolf
Källström
University: University of Gävle City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Matt
Kerr (Online)
University: Washington University in St. Louis City: United States Arrival and Departure: -
Adeel
Khan (Online)
University: Academia Sinica City: Taiwan Arrival and Departure: -
Maryam
Khaqan
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Frances
Kirwan (Online)
University: University of Oxford City: United Kingdom Arrival and Departure: -
Bruno
Klingler
University: Humboldt-Universität zu Berlin City: Germany Arrival and Departure: Oct 10 - Oct 17, 2021
János
Kollár (Online)
University: Princeton University City: United States Arrival and Departure: -
Martijn
Kool (Online)
University: Utrecht University City: The Netherlands Arrival and Departure: -
Sándor
Kovács (Online)
University: University of Washington City: United States Arrival and Departure: -
Andrew
Kresch
University: University of Zurich City: Switzerland Arrival and Departure: Oct 23 - Dec 5, 2021
Nikolas
Kuhn
University: Stanford University City: United States Arrival and Departure: Aug 30 - Dec 10, 2021
Josefien
Kuijper
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Aaron
Landesman
University: Harvard University City: United States Arrival and Departure: Oct 14 - Oct 24, 2021
Lionel
Lang
University: University of Gävle City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Brian
Lawrence
University: University of Chicago City: United States Arrival and Departure: Oct 17 - Oct 23
Radu
Laza
University: Stony Brook University City: United States Arrival and Departure: Oct 10 - Oct 24, 2021
Oliver
Leigh
University: Uppsala University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Zhiyuan
Li (Online)
University: Fudan University City: China Arrival and Departure: -
Max
Lieblich (Online)
University: University of Washington City: United States Arrival and Departure: -
Christian
Liedtke (Online)
University: Technical University of Munich City: Germany Arrival and Departure: -
Erik
Lindell
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Daniel
Litt
University: The University of Georgia City: United States Arrival and Departure: Oct 17 - Oct 23, 2021
Wanmin
Liu
University: City: Arrival and Departure: Aug 30 - Dec 10, 2021
Eduard
Looijenga
University: Nederlands Mathematisch Instituut City: The Netherlands Arrival and Departure: Sep 1 - Oct 30, 2021
Emanuele
Macrí
University: Université Paris-Saclay City: France Arrival and Departure: Oct 7 - Oct 11, 2021
Olivier
Martin
University: Stony Brook University City: United States Arrival and Departure: Nov 28 - Dec 10, 2021
Siddharth
Mathur
University: Pontificia Universidad Católica de Chile City: Chile Arrival and Departure: Aug 30 - Dec 10, 2021
Boris
Mladenov
University: Imperial College London City: United Kingdom Arrival and Departure: Sep 2 - Dec 10, 2021
Samouil
Molcho
University: The Hebrew University of Jerusalem City: Israel Arrival and Departure: Nov 12 - Nov 20, 2021
Ben
Moonen
University: Radboud University City: The Netherlands Arrival and Departure: Oct 17 - Oct 22, 2021
Johannes
Nicaise
University: Imperial College London City: United Kingdom Arrival and Departure: Aug 30 - Sep 30, 2021
Georg
Oberdieck
University: University of Bonn City: Germany Arrival and Departure: Sep 23 - Sep 30, 2021
Kieran
O'Grady
University: Sapienza University of Rome City: Italy Arrival and Departure: Oct 2 - Oct 9, 2021
Ludvig
Olsson
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Claudio
Onorati
University: Universita di Roma Tor Vergata City: Italy Arrival and Departure: Nov 1 - Dec 10, 2021
Angela
Ortega
University: Humboldt Universität zu Berlin City: Germany Arrival and Departure: Aug 30 - Sep 10, 2021
John Christian
Ottem
University: University of Oslo City: Norway Arrival and Departure: Aug 30 - Dec 10, 2021
Nicola
Pagani
University: University of Liverpool City: United Kingdom Arrival and Departure: Nov 16 - Nov 28, 2021
Matthias
Paulsen
University: Leibniz University City: Germany Arrival and Departure: Aug 30 - Dec 10, 2021
Sam
Payne (Online)
University: University of Texas at Austin City: United States Arrival and Departure: -
Simon
Pepin Lehalleur (Online)
University: Radboud University City: The Netherlands Arrival and Departure: -
Dan
Petersen
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Ragni
Piene
University: University of Oslo City: Norway Arrival and Departure: Nov 14 - Nov 20, 2021
Roberto
Pirisi
University: University of Pisa City: Italy Arrival and Departure: Oct 17, Oct 22 - Nov 14, Nov 19, 2021
Aaron
Pixton (Online)
University: University of Michigan City: United States Arrival and Departure: -
Elisa
Postinghel (Online)
University: University of Trento City: Italy Arrival and Departure: -
Ming Hao
Quek
University: Brown University City: United States Arrival and Departure: Sep 8 - Dec 6, 2021
Kristian
Ranestad
University: University of Oslo City: Norway Arrival and Departure: Nov 22 - Nov 25, 2021
Martin
Raum
University: Chalmers / University of Gothenburg City: Sweden Arrival and Departure: Nov 1 - Dec 10, 2021
Jørgen
Rennemo (Online)
University: University of Oslo City: Norway Arrival and Departure: -
Stefan
Reppen
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Mohammad
Reza Rahmati (Online)
University: Parque de innovacion De La Salle City: Mexico Arrival and Departure: -
Andrea
Ricolfi
University: The International School for Advanced Studies (SISSA) City: Italy Arrival and Departure: Aug 30 - Dec 10, 2021
David
Rydh
University: KTH Royal Institute of Technology City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Anna-Laura
Sattelberger
University: Max Planck Institute for Mathematics in the Sciences City: Germany Arrival and Departure: Aug 30 - Dec 10, 2021
Luca
Schaffler
University: Universita Roma Tre City: Italy Arrival and Departure: Aug 30 - Dec 10, 2021
Stefan
Schreieder
University: Leibniz University Hannover City: Germany Arrival and Departure: Sep 26 - Oct 9, 2021
Vahid
Shahverdi
University: KTH Royal Institute of Technology City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Boris
Shapiro
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Kris
Shaw
University: University of Oslo City: Norway Arrival and Departure: Dec 1 - Dec 3, 2021
Junliang
Shen (Online)
University: Massachusetts Institute of Technology City: United States Arrival and Departure: -
Evgeny
Shinder (Online)
University: University of Sheffield City: United Kingdom Arrival and Departure: -
Farbod
Shokrieh (Online)
University: University of Washington City: United States Arrival and Departure: -
Bjørn
Skauli
University: University of Oslo City: Norway Arrival and Departure: Oct 2, Nov 25 - Oct 23, Dec 3, 2021
Roy
Skjelnes
University: KTH Royal Institute of Technology City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Ernest
Specka (Online)
University: ENS de Lyon City: France Arrival and Departure: -
Fumiaki
Suzuki (Online)
University: University of California Los Angeles City: United States Arrival and Departure: -
Tuomas
Tajakka
University: Stockholm University City: Sweden Arrival and Departure: Aug 30 - Dec 10, 2021
Mattia
Talpo
University: University of Pisa City: Italy Arrival and Departure: Nov 14 - Nov 20, 2021
Michael
Temkin
University: The Hebrew University of Jerusalem City: Israel Arrival and Departure: Nov 15 - Nov 21, 2021
Richard
Thomas (Online)
University: Imperial College London City: United Kingdom Arrival and Departure: -
Sofia
Tirabassi
University: Stockholm University City: Sweden Arrival and Departure: Sep 30 - Dec 10, 2021
Orsola
Tommasi
University: University of Padova City: Italy Arrival and Departure: Nov 8 - Nov 26, 2021
Burt
Totaro (Online)
University: University of California Los Angeles City: United States Arrival and Departure: -
Yuri
Tschinkel (Online)
University: Courant Institute of Mathematical Sciences City: United States Arrival and Departure: -
Hsian-Hua
Tseng (Online)
University: Ohio State University City: United States Arrival and Departure: -
Dmitry
Vaintrob
University: University of California Berkeley City: United States Arrival and Departure: Nov 10 - Nov 25, 2021
Ravi
Vakil (Online)
University: Stanford University City: United States Arrival and Departure: -
Gerard
van der Geer
University: University of Amsterdam City: The Netherlands Arrival and Departure: Sep 1 - Oct 31, 2021
Srinivas
Vasudevan (Online)
University: TIFR, Tata Institute of Fundamental Research City: India Arrival and Departure: -
Angelo
Vistoli
University: Scuola Normale Superiore City: Italy Arrival and Departure: Oct 3 - Oct 30, 2021
Filippo
Viviani
University: Universita Roma Tre City: Italy Arrival and Departure: Nov 14 - Nov 20, 2021
Claire
Voisin
University: CNRS - Centre national de la recherche scientifique City: France Arrival and Departure: Nov 14 - Nov 19, 2021
Cong
Wen (Online)
University: Boston University City: United States Arrival and Departure: -
Simen
Westbye Moe
University: Imperial College London City: United Kingdom Arrival and Departure: Sep 13 - Sep 26, 2021
Jonathan
Wise (Online)
University: University of Colorado at Boulder City: United States Arrival and Departure: -
Jaroslaw
Wlodarczyk (Online)
University: Purdue University City: United States Arrival and Departure: -
Chenyang
Xu (Online)
University: Massachusetts Institute of Technology City: United States Arrival and Departure: -
Maria
Yakerson
University: ETH Zürich City: Switzerland Arrival and Departure: Oct 25 - Nov 12, 2021
Qizheng
Yin (Online)
University: Beijing International Center for Mathematical Research City: China Arrival and Departure: -

Preprints

  1. Unipotent morphisms - Daniel Bragg Jack Hall Siddharth Mathur
  2. Equivariant Burnside groups and toric varieties - Andrew Kresch Yuri Tschinkel
  3. The Nisnevich Motive of an Algebraic Stack - Utsav Choudhury Neeraj Deshmukh Amit Hogadi
  4. The integral Chow rings of moduli of Weierstrass fibrations - Samir Canning Andrea Di Lorenzo Giovanni Inchiostro
  5. Hyperelliptic curves, the scanning map, and moments of families of quadratic L-functions - Jonas Bergström, Adrian Diaconu Dan Petersen Craig Westerland