Winter Semester 2020/21

Name of Guest University Host University Date of Visit Title of Talk
Haowu Wang MPIM Bonn Darmstadt 14.10.2020 Root systems and free algebras of modular forms
Yunqing Tang CNRS & Université Paris-Sud Darmstadt 21.10.2020 Reductions of K3 surfaces via intersections on GSpin Shimura varieties
Alessandro Lägeler ETH Zürich Darmstadt 28.10.2020 Continued fractions and Hardy sums
Michael Griffin Brigham Young University Darmstadt 04.11.2020 Class pairings and elliptic curves
Ming-Hao Quek Brown University Frankfurt 04.11.2020 Resolution of singularities via stacks and weighted blowings up
Christina Röhrig Universität zu Köln Darmstadt 11.11.2020 Siegel theta series for indefinite quadratic forms
Toshiki Matsusaka Nagoya University Darmstadt 18.11.2020 Two analogues of the Rademacher symbol
Beatrice Pozzetti University of Heidelberg Frankfurt 18.11.2020 The real spectrum compactification of higher rank Teichmüller spaces
Kathrin Maurischat RWTH Aachen Darmstadt 25.11.2020 Explicit construction of Ramanujan bigraphs
Martin Schwald University of Essen Frankfurt 02.12.2020 On the definition of irreducible holomorphic symplectic manifolds and their singular analogues
Xin Fang Universität Köln Frankfurt 04.12.2020 Tropical flag varieties – a Lie theoretic approach
(TGiF-Tropical Geometry in Frankfurt)
Man-Wai Cheung Harvard University Frankfurt 04.12.2020 Polytopes, wall crossings, and cluster varieties
(TGiF-Tropical Geometry in Frankfurt)
Lara Bossinger UNAM Oaxaca Frankfurt 04.12.2020 Tropical geometry of Grassmannians and their cluster structure
(TGiF-Tropical Geometry in Frankfurt)
Ariel Pacetti Universidad de Cordoba Darmstadt 09.12.2020 \mathbb{Q}-curves, Hecke characters and some Diophantine equations
Yajnaseni Dutta University of Bonn Frankfurt 16.12.2020 Holomorphic 1-forms and geometry
Eugenia Rosu University of Regensburg Darmstadt 16.12.2020 Twists of elliptic curves with CM
Johann Franke Universität zu Köln Darmstadt 13.01.2021 Rational functions, modular forms and cotangent sums
Jolanta Marzec University of Kazimierz Wielki Darmstadt 20.01.2021 Algebraicity of special L-values attached to Jacobi forms of higher index
Dori Bejleri Harvard University Frankfurt 20.01.2021 Compact moduli of higher dimensional varieties
Alheydis Geiger University of Tuebingen Frankfurt 22.01.2021 Deformations of bitangent classes of tropical quartic curves
(TGiF-Tropical Geometry in Frankfurt)
Matt Baker Georgia Tech Frankfurt 22.01.2021 Pastures, Polynomials, and Matroids
(TGiF-Tropical Geometry in Frankfurt)
Daniel Litt University of Georgia Frankfurt 22.01.2021 The tropical section conjecture
(TGiF-Tropical Geometry in Frankfurt)
John Cristian Ottem University of Oslo Frankfurt 27.01.2021 Enriques surface fibrations of even index
Tom Oliver University of Nottingham Darmstadt 27.01.2021 Twisting moduli, meromorphy and zeros
Martin Schwald University of Essen Frankfurt 02.02.2021 On the definition of irreducible holomorphic symplectic manifolds and their singular analogues
Daniele Agostini MPI Leipzig Frankfurt 03.02.2021 On the irrationality of moduli spaces of K3 surfaces
John Christian Ottem University of Oslo Frankfurt 19.02.2021 Tropical degenerations and stable rationality
(TGiF-Tropical Geometry in Frankfurt)
Marco Pacini Universidade Federal Fluminense Frankfurt 19.02.2021 A universal tropical Jacobian over the moduli space of tropical curves.
(TGiF-Tropical Geometry in Frankfurt)
Laura Escobar Washington University in St. Louis Frankfurt 19.02.2021 Wall-crossing for Newton-Okounkov bodies
(TGiF-Tropical Geometry in Frankfurt)
Eleonore Faber University of Leeds Frankfurt 24.02.2021 Grassmannian categories of infinite rank and rings of countable Cohen-Macaulay type
Sourav Das Tata Institute of Fundamental Research, Mumbai Frankfurt 10.03.2021 Log-symplectic structure on a degeneration of moduli of Higgs bundles
Anthea Monod Imperial College Frankfurt 12.03.2021 Tropical geometry of phylogenetic tree spaces
(TGiF-Tropical Geometry in Frankfurt)
Claudia He Yun Brown University Frankfurt 12.03.2021 The S_n-equivariant rational homology of the tropical moduli spaces \Delta_{2,n}
(TGiF-Tropical Geometry in Frankfurt)
Daniel Corey University of Wisconsin Frankfurt 12.03.2021 The Ceresa class: tropical, topological, and algebraic
(TGiF-Tropical Geometry in Frankfurt)
Name of Guest University Host University Date of Visit Title of Talk
Danylo Radchenko
ETH Zurich Darmstadt 08.04.2020 Universal optimality of the E8 and Leech lattices
Paloma Bengoechea ETH Zurich Darmstadt 15.04.2020 Periods of modular functions and Diophantine approximation
Jan Vonk
IAS Princeton Darmstadt 22.04.2020 Singular moduli for real quadratic fields
Marta Panizzut Universität Osnabrück Frankfurt 24.04.2020 Tropical cubic surfaces and their lines.
Jan Draisma
Universität Bern Frankfurt 24.04.2020 Catalan-many morphisms to trees-Part I
Alejandro Vargas Universität Bern Frankfurt 24.04.2020 Catalan-many morphisms to trees-Part II
Eugen Hellmann Münster Darmstadt 27.04.2020 On the derived category of the Iwahori-Hecke algebra, I
Nick Andersen
Brigham Young University Darmstadt 29.04.2020 Zeros of GL2 L-functions on the critical line
Eugen Hellmann Münster Darmstadt 07.05.2020 On the derived category of the Iwahori-Hecke algebra, II
Soma Purkait
Tokyo Institute of Technology Darmstadt 06.05.2020 Local Hecke algebras and new forms
Ben Heuer Bonn Darmstadt 11.05.2020 Perfectoid universal covers of abelian varieties, I
Hannah Larson Stanford University Frankfurt 13.05.2020 Vector bundles on P^1 bundles
Peter Humphries
University College London Darmstadt 13.05.2020 Sparse equidistribution of hyperbolic orbifolds
Jakob Scholbach Universität Münster Darmstadt 14.05., 03.08., 17.09.2020 Project: „The derived Drinfeld Lemma for étale sheaves“
Ben Heuer Bonn Darmstadt 18.05.2020 Perfectoid universal covers of abelian varieties, II
Emanuel Reinecke University of Michigan Frankfurt 20.05.2020 The cohomology of the moduli space of curves at infinite level
Larry Rolen
Vanderbilt University Darmstadt 20.05.2020 Periodicities for Taylor coefficients of half-integral weight modular forms
Andreas Mihatsch MIT Darmstadt 25.05.2020 Currents on Lubin-Tate spaces I
Olivia Beckwith
University of Illinois Darmstadt 27.05.2020 Polyharmonic Maass forms and Hecke L-series
Yue Ren University of Swansea Frankfurt 29.05.2020 Tropical varieties of neural networks
Hannah Markwig Eberhard Karls Universität Tübingen Frankfurt 29.05.2020 The combinatorics and real lifting of tropical bitangents to plane quartics
Dan Fretwell
Bristol University Darmstadt 03.06.2020 (Real Quadratic) Arthurian Tales
Andreas Mihatsch MIT Darmstadt 08.06.2020 Currents on Lubin-Tate spaces I
Martin Raum
Chalmers Technical University Darmstadt 10.06.2020 Divisibilities of Hurwitz class numbers
Alexander Ivanov Bonn Darmstadt 15.06.2020 On p-adic Deligne-Lusztig spaces, I
Frederik Benirschke Stony Brook University Frankfurt 17.06.2020 The boundary of linear subvarieties
Alexander Ivanov Bonn Darmstadt 22.06.2020 On p-adic Deligne-Lusztig spaces, I
Sven Möller
Rutgers University Darmstadt 24.06.2020 Eisenstein Series, Dimension Formulae and Generalised Deep Holes of the Leech Lattice Vertex Operator Algebra
Mark Gross University of Cambridge Frankfurt 26.06.2020 Gluing log Gromov-Witten invariants
Luca Battistella
Universität Heidelberg Frankfurt 26.06.2020 A smooth compactification of genus two curves in projective space
Kalina Mincheva
Yale University Frankfurt 26.06.2020 Gluing log Gromov-Witten invariants
Johannes Anschütz Bonn Darmstadt 29.06.2020 Averaging functors in Fargues' program for GL_n
Hao Zhang
Sorbonne Université Darmstadt 01.07.2020 Elliptic cocycle for GL_N(Z) and Hecke operators
Eva Viehmann München Darmstadt 06.07.2020 Harder-Narasimhan and Newton polygons for modifications of G-bundles, I
Shaul Zemel
Hebrew University of Jerusalem Darmstadt 08.07.2020 Shintani Lifts of Nearly Holomorphic Modular Forms
Eva Viehmann München Darmstadt 13.07.2020 Harder-Narasimhan and Newton polygons for modifications of G-bundles, II
Nikos Diamantis
University of Nottingham Darmstadt 15.07.2020 Twisted L-functions and a conjecture by Mazur, Rubin and Stein
João Lourenço Imperial College London Darmstadt 16.09.2020 Project: „Diamond local models"
Simon Riche Université Clermont Auvergne Darmstadt 28.09.-02.10.2020 Project: „Integral Ramified Satake and Dynkin Pairs“
Pramod Achar Louisiana State University Darmstadt 28.09.- 02.10.2020 Project: „Integral Ramified Satake and Dynkin Pairs“
Steve Kudla University of Toronto Darmstadt regular cooperative meetings
Siddarth Sankaran University of Manitoba Darmstadt regular cooperative meetings
Tonghai Yang University of Wisconsin Darmstadt regular cooperative meetings
Jens Funke University of Durham Darmstadt regular cooperative meetings
Name of Guest University Host University Date of Visit Title of Talk
Markus Schwagenscheidt Universität zu Köln Darmstadt 16./17.10.2019
Giulio Bresciani FU Berlin Frankfurt 23.10. – 24.10.2019 On the (birational) section conjecture over finitely generated field
Sam Payne University of Texas, Austin, USA Frankfurt 31.10.2019 TGiF-Tropical Geometry in Frankfurt – First meeting in Winter Semester
Enrica Mazzon Max-Planck-Institute Bonn Frankfurt 30.10. – 1.11.2019 TGiF-Tropical Geometry in Frankfurt – First meeting in Winter Semester
Christoph Goldner Universität Tübingen Frankfurt 31.10.2019 TGiF-Tropical Geometry in Frankfurt – First meeting in Winter Semester
Anilatmaja Aryasomayajula IISER Tirupati, India Darmstadt 20.11.-14.12.2019 Estimates of holomorphic cusp forms associated to co-compact arithmetic subgroups
Mirko Mauri MPI Bonn Frankfurt 04.12.2019 Dual complexes of log Calabi-Yau pairs and Mori fibre spaces
Tong Hai Yang University of Wisconsin, USA Darmstadt 8.-15. and 20./21.12.2019
Johan M. Commelin Albert-Ludwigs-Universität Freiburg Darmstadt 17./18.12.2019 Formalising perfectoid spaces
Chiara Damiolini Princeton University, USA Frankfurt 18.12.2019 Conformal blocks defined by modules over vertex algebras of CohFT-type
Mariá Angélica Cueto Ohio State University, USA Frankfurt 19.12.2019 Anticanonical tropical del Pezzo cubic surfaces contain exactly 27 lines.
Yusuf Mustopa Tufts University, USA Frankfurt 13.01. – 17.01.2020
Edgar Assing Universität Bonn Darmstadt 14.01.2020 Wilton estimates and the fine structure of Fourier coefficients
Dr. Daniel Kohen Universität Duisburg – Essen Darmstadt 20./21.01.2020 A Gross-Kohnen-Zagier theorem for non-split Cartan curves
Lars Kühne Universität Basel, Switzerland Frankfurt 22.01. – 24.01.2020
Jürg Kramer Humboldt-Universität Berlin Darmstadt 22.-24.01.2020
Eugen Hellmann Universität Münster Darmstadt 27.-30.01.2020 On the derived category of the Iwahori-Hecke Algebra
Diane Maclagan University of Warwick, UK Frankfurt 24.01.2020
Oliver Lorscheid IMPA/MPI Bonn Frankfurt 24.01.2020
Karl Christ Bar-Ilan University, Israel Frankfurt 24.01.2020
Cecília Salgado MPI Bonn / Universidade Federal do Rio de Janeiro, Brasil Frankfurt 06.02.2020
Dr. Hongbo Yin MPIM Bonn Darmstadt 11.02.2020 Cubic sum problem and singular moduli
Name of Guest University Host University Date of Visit Title of Talk
Stephen Kudla University of Toronto, Canada Darmstadt 01.-30.04.2019
Gabino González-Diaz Universidad Autónoma de Madrid, Spain Frankfurt 03.04.2019 Galois action on Riemann surfaces and their associated solenoids
Robert Osburn University College Dublin, Ireland Darmstadt 23.04.2019 Generalized Kontsevich-Zagier series via knots
Dimitri Wyss Université Paris 6, France Darmstadt 11.-15.05.2019 Non-Archimedean integrals on the Hitchin Fibration
Mark Feldmann Universität Münster Darmstadt 20.-21.05.2019
Alexander Betts MPIM Bonn Frankfurt 22.05.2019 Non-abelian Kummer maps for curves
Irene Bouw Universität Ulm Darmstadt 29.05.2019 Computing arithmetic invariants via reduction
Lucia Mocz Universität Bonn Frankfurt 06.06.2019 A New Northcott Property for Faltings Height
Margarida Melo Università degli studi Roma Tre, Italy Frankfurt 06.-08.06.2019 Combinatorics and moduli of line bundles on stable curves.
Farbod Shokrieh University of Copenhagen, Denmark Frankfurt 06.-08.06.2019 Heights and moments of abelian varieties
Philipp Jell Universität Regensburg Frankfurt 07.06.2019 The tropical Hodge conjecture for divisors
Hanieh Keneshlou Max-Planck-Institut Leipzig Frankfurt 05.-07.06.2019 Moduli of 6-gonal genus 11 curves with several pencils
Samouil Molcho Hebrew University of Jerusalem, Israel Frankfurt 11.-12.06.2019 The Logarithmic Picard Group and its Tropicalization
Katherine E. Stange
University of Colorado, Boulder, USA Frankfurt 22.-27.06.2019 An illustration in number theory: abelian sandpiles and Schmidt arrangements
Jonathan Wise University of Colorado, Boulder Frankfurt 22.-27.06.2019 Complete moduli of line bundles and divisors
Paul Ziegler University of Oxford, UK Darmstadt 23.-26.06.2019
Madeline Brandt UC Berkeley, USA Frankfurt 30.06.-06.07.2019 Matroids and their Dressians
Andrew Corbett University Exeter, UK Darmstadt 24.-27.06.2019 Fourier coefficients of automorphic forms: p-adic analysis and arithmetic at the cusps
Sven Möller Rutgers University, USA Darmstadt 01.-10.07.2019
Kęstutis Česnavičius Université Paris-Sud, Orsay, France Darmstadt 02.-04.07.2019 Purity for the Brauer group of singular schemes
Dhruv Ranganathan University of Cambridge, UK Frankfurt 04.-08.07.2019 Tropical curves, stable maps, and singularities in genus one
Yoav Len Georgia Institute of Technology, USA Frankfurt 04.-09.07.2019 Algebraic and Tropical Prym varieties
Robert Little Oxford University, UK Darmstadt 07.-10.07.2019 A Geometric Theta Correspondence for Picard Modular Surfaces
Dmitry Zakharov Central Michigan University, USA Frankfurt 14.-20.07.2019 Covers of algebraic curves and graphs with a finite group action
John Millson University of Maryland , USA Darmstadt 15.-23.09.2019 Holomorphic forms on quotients of hermitian locally symmetric spaces and generalized special cycles
Shaul Zemel Hebrew University of Jerusalem, Israel Darmstadt 17.-22.09.2019 Heegner divisors on toroidal compactifications of orthogonal Shimura varieties
Jens Funke University of Durham, UK Darmstadt 16.-23.09.2019 The construction of Green currents and singular theta lifts for unitary groups
Siegfried Böcherer Universität Mannheim Darmstadt 16.-20.09.2019 On paramodular forms of arbitrary degree
Soumya Das Indian Institute of Science, Bangalore, India Darmstadt 17.-20.09.2019 Fundamental Fourier coefficients of Siegel modular forms
Name of Guest University Host University Date of Visit Title of Talk
Bossinger, Lara Max Planck Institut, Leipzig Frankfurt 15.-17.10.2018
Roe, Joaquim Universitat Autonòma de Barcelona Frankfurt 22.-26.10.2018
Elsholtz, Christian Universität Graz, Österreich Darmstadt 30./31.10.2018 Applications of sieve methods
Shaw, Kristin Universität Oslo Frankfurt 05.-07.11.2018 Chern-Schwartz-MacPherson classes of matroids
Funke, Jens University of Durham U.K. Darmstadt 05.-11.11.2018
Fiebig, Peter Universität Nürnberg-Erlangen Darmstadt 14./15.11.2018 Darstellungstheorie in positiver Charakteristik
Habegger, Philipp Universität Basel Frankfurt 21./22.11.2018 On the Bogomolov Conjecture over Function Fields in Characteristic 0
Mocanu, Andreea University of Nottingham U.K. Darmstadt 26./27.11.2018 Newform theory from Jacobi forms of lattice index
Rettenmayr, Stephan Universität Bonn Frankfurt 29.11.2018 Mumford-Tate-Gruppen und Breuil-Kisin-Moduln
Haowu Wang Université Lille Darmstadt 17.-19.12.2018 Non-existence of reflective modular forms
Sustretov, Dmitry HSE Moskau Frankfurt 16./17.01.2019 Gromov-Hausdorff limits of curves with flat metrics and
non-Archimedean geometry
Goren, Eyal McGill University,
Darmstadt 11./12.01.2019 P-adic dynmicas of Hecke operators
Heinloth, Jochen FAU Erlangen-Nürnberg Darmstadt 06./07.02.2019 Hitchin's fibration: From integrable systems to number theory
Kathrin Bringmann Universität Köln Frankfurt 13./14.02.2019 False theta functions and their modular properties
Emily Clader San Francisco State University Frankfurt 11.-15.02.2019 Wall-crossing in quasimap theory (Minicourse I, II and III)
Felix Janda University of Michigan Frankfurt 11.-15.02.2019 Variants of the DR cycle (Minicourse I, II and III)
Martijn Kool Utrecht University Frankfurt 11.-15.02.2019 New calculations in Vafa-Witten theory
Hyenho Lho ETH Zürich Frankfurt 11.-15.02.2019 Quasi-modularity of Calabi-Yau fibration
Cristina Manolache Imperial College, London Frankfurt 11.-15.02.2019 A splitting of the virtual class
Georg Oberdieck MIT/University of Bonn Frankfurt 11.-15.02.2019 The Gromov-Witten theory of T*ExP1 (Minicourse I, II and III)
Nicola Pagani University of Liverpool Frankfurt 11.-15.02.2019 Towards an enumerative geometry of compactified universal Jacobians
Adrian Sauvaget Jussieu, Université Paris VII Frankfurt 11.-15.02.2019 Masur-Veech volume recursion
Dmitry Zvonkine Jussieu, Université Paris VII Frankfurt 11.-15.02.2019 Cohomological field theories with non-tautological classes
Walter, Lena Freie Universität Berlin Frankfurt 20.-22.02.2019 Projektarbeit
Haase, Christian Freie Universität Berlin Frankfurt 20.-22.02.2019 Projektarbeit
Daniel, Jeremy Université de Lorraine, Metz Frankfurt 18.-22.03.2019 Projektarbeit
Martin-Baillon, Florestan Université de Cergy-Pontoise, Paris Frankfurt 18.-22.03.2019 Projektarbeit
Name of Guest University Host University Date of Visit Title of Talk
Ehlen, Stephan Universität zu Köln Darmstadt 12.-14.03.2018
Lozovanu, Victor Leibniz Universität Hannover Frankfurt 23.04.2018
Lentner, Simon Universität Hamburg Darmstadt 15.05.-16.05.2018 Non-Semisimple Modular Tensor Categories
Schwagenscheidt, Markus Universität zu Köln Darmstadt 16.-18.05.2018
Yang, Tonghai University of Wisconsin, USA Darmstadt 18.-25.05.2018 Mini-Workshop “Generating series of special cycles”
Ehlen, Stephan Universität zu Köln Darmstadt 21.05.-25.05.2018 Mini-Workshop “Generating series of special cycles”
Sertöz, Emre Max-Planck-Institut MiS, Leipzig Frankfurt 23.05.-24.05.2018 Computing and using periods of hypersurfaces
Frey, Linda Universität Basel Darmstadt 19.06.2018 Explicit Small Height Bound for $\mathds{Q} (E_\text{tor})$
Angelo Lopez Roma Tre University, Italien Frankfurt 24.06.-29.06.2018 Extremal cycles and diagonals in symmetric product of curves
Pop, Florian UPenn, Philadelphia, USA Frankfurt 20.06.-22.06.2018 Recovering canonical inertia generators
Zakharov, Dmitry

Central Michigan University, USA Frankfurt
The double ramification cycle, relations in the tautological ring, and tropical geometry
Tom Oliver Oxford University, U.K. Darmstadt 02.-05.07.2018 Order an cancellatopn of zeros for automorphic L-functions
Patrick Holzer Darmstadt 03.07.2018 Recovering short generators of principal fractional ideals in cyclotomic fields of conductor
Quentin Gendron Universidad Nacional Autónoma de México Frankfurt 12.09.2018
Name of Guest University Host University Date of Visit Title of Talk
Hoshi, Yuichiro Kyoto University, Japan Frankfurt 26.10.-17.11.2017 On torsion points on a curve with good reduction over an absolutely unramified base
Hübner, Katharina   Universität Heidelberg Frankfurt 30.11.2017 The tame site
Funke, Jens University of Durham U.K. Darmstadt 08.01.-12.01.2018
Alfes-Neumann, Claudia Universität Paderborn Darmstadt 09.01.2018 Shintani lifts of harmonic Maass forms
Lonjou, Anne Universität Basel Frankfurt 21.01.-24.01.2018
Ehlen, Stephan Universität zu Köln Darmstadt 24.-27.01.2018
Kudla, Stephen University of Toronto, Kanada Darmstadt 31.01.-04.02. Arithmetic theta series
Wanner, Veronika Universität Regensburg Frankfurt 01.02.-02.02.2018 Subharmonic functions on non-archimedean curve
Zagier, Don MPIM Bonn Darmstadt 02.-03.02.2018 Modular forms and mock modular forms in physics.
Bachmann, Henrik Nagoya Uni, Japan Darmstadt 06.02.2018 Multiple harmonic q-series at roots of unity and their connection to finite & symmetrized multiple zeta values
Carlson, Magnus KTH, Schweden Frankfurt 06.02.-08.02.2018 Cohomology rings of number fields and applications
Brandt, Madeline University of California, USA Frankfurt 08.02.-09.02.2018 Tropical Superelliptic Curves
Maculan, Marco Institut Mathématics de Jussieu, Frankreich Frankfurt 08.02.-09.02.2018 Stein spaces in non-archimedean geometry
Kühne, Lars Universität Basel Frankfurt 14.02.-16.02.2018
Möller, Sven Rutgers University, USA Darmstadt 18.02.-23.02.2018 Cyclic Orbifolds of the Leech Lattice Vertex Operator Algebra
Zemel, Shaul Hebrew University, Israel Darmstadt 05.-12.03.2018
Ehlen, Stephan Universität zu Köln Darmstadt 12.-14.03.2018
Ziegler, Paul University of Oxford, UK Darmstadt 22.03.-23.03.2018