Meetings organized
- Since 2014 - Göttingen-Hannover Number Theory Workshop (organized jointly with Valentin Blomer, Jörg Brüdern, Damaris Schindler)
- 07/2022 - Colloquium and Conference in Memory of Christine Bessenrodt, 8/9 July 2022 (organized jointly with C. Bowman, M. Cuntz, T. Holm, L. Morotti, B. Sambale)
- 11/2018 - Geometric and Analytic Number Theory, Universität Göttingen, 19-23 November 2018 (organized jointly with Valentin Blomer, Jörg Brüdern, Emmanuel Kowalski, Philippe Michel)
- 08-09/2018 - Arithmetic and Geometry of Cubic Hypersurfaces, Leibniz Universität Hannover, 13 August-7 September 2018 (organized jointly with Klaus Hulek)
- 05/2018 - Rational and Integral Points via Analytic and Geometric Methods, Casa Matemática Oaxaca, 28 May-1 June 2018 (organized jointly with Tim Browning, Cecília Salgado)
- 09/2015 - Analytic Number Theory and Diophantine Geometry, Leibniz Universität Hannover, 7-11 September 2015 (organized jointly with Christopher Frei, Daniel Loughran)
- 03/2014 - Geometry and Arithmetic of Surfaces, LMU & TU Munich, 17-21 March 2014 (organized jointly with Christopher Frei, Christian Liedtke)
- 07/2012 - Summer Workshop in Algebraic & Arithmetic Geometry, LMU Munich, 5/6 July 2012 (organized jointly with Jürgen Hausen)
- 05/2012 - Rational Points & Rational Curves, University of Zurich, 21-25 May 2012 (organized jointly with Andrew Kresch)
- 11/2011 - LMU Number Theory Symposium, LMU Munich, 18/19 November 2011 (organized jointly with Fabien Morel, Martin Schottenloher)
- 05/2010 - Rational Points - Theory & Experiment, FIM / ETH Zürich, 25-29 May, 2010 (organized jointly with Gisbert Wüstholz)
Workshops attended
- 03/2026 - Cox rings and applications, CIRM, Luminy
- 03/2025 - Diophantine and Rationality Problems, Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences, Sofia
- 10/2024 - Birational Geometry and Number Theory, ICMS, Edinburgh
- 08/2024 - Geometry Over Non-Closed Fields, Schloss Elmau
- 06/2024 - Visions in Arithmetic and Beyond, IAS, Princeton
- 05/2024 - Arithmetic Geometry, Group Actions and Rationality Problems, Simons Foundation, New York
- 03/2024 - Degree d points on algebraic surfaces, American Institute of Mathematics, Pasadena
- 03/2024 - Simons Collaboration on Perfection in Algebra, Geometry and Topology Annual Meeting, Simons Foundation, New York
- 01/2024 - Simons Collaboration on Arithmetic Geometry, Number Theory, and Computation Annual Meeting, Simons Foundation, New York
- 07/2023 - Rational Points 2023, Schloss Schney
- 03/2022 - Rational Points 2022, Schloss Schney
- 09/2021 - DMV-ÖMG Jahrestagung 2021, Section Algebra, Algebraic Geometry & Number Theory, Passau (online)
- 09/2021 - Arithmetic Statistics and Local-Global Principles, ESI, Wien
- 04/2021 - Institut Mittag-Leffler, Number Theory Program (online)
- 09/2020 - DMV-Jahrestagung, Section Algebra, Algebraic Geometry and Number Theory, TU Chemnitz (online)
- 07/2019 - del Pezzo surfaces and Fano varieties, Universität Düsseldorf
- 07/2019 - Rational Points 2019, Schloss Schney
- 07/2018 - Rational Points on Schiermonnikoog
- 05/2018 - Birational Geometry and Arithmetic, ICERM, Providence
- 12/2017 - Conference on Algebraic Geometry and Number Theory, Firenze
- 07/2017 - Rational Points 2017, Schloss Schney
- 01/2017 - North German Algebraic Geometry Seminar, Hamburg
- 11/2016 - N-cube-days V, Chalmers University, Göteborg
- 09/2016 - Rational Points and Algebraic Geometry, CIRM, Luminy
- 09/2016 - Geometric and Analytic Number Theory, ETH Zürich
- 01/2016 - Conference on Algebraic Number Theory, Tsinghua Sanya International Mathematics Forum
- 12/2015 - North German Algebraic Geometry Seminar, FU Berlin
- 09/2015 - Jahrestagung SPP 1489, Osnabrück
- 06/2015 - Rational Points 2015, Schloss Schney
- 06/2015 - Quantitative arithmetic geometry, Institut Mittag-Leffler
- 06/2015 - Arithmetic geometry, Chow groups and rational points, Steklov Mathematical Institute, St. Petersburg
- 06/2015 - Mini-course on Arithmetic Geometry, Universität Basel
- 05/2015 - Rational Points - Pontos Racionais, IMPA, Rio de Janeiro
- 05/2015 - Irish Geometry Conference 2015, Mary Immaculate College, Limerick
- 05/2014 - Rational and integral points on higher-dimensional varieties, American Institute of Mathematics, Palo Alto
- 03/2014 - Jahrestagung SPP 1489, Bad Boll
- 11/2013 - Heights in Diophantine geometry, group theory and additive combinatorics, ESI, Wien
- 09-10/2013 - Institut des Hautes Études Scientifiques (IHÉS), Bures-sur-Yvette
- 07/2013 - Rational Points 2013, Schloss Thurnau
- 05/2013 - Rational Points - Geometric, Analytic and Explicit Approaches, Warwick
- 05/2013 - North German Algebraic Geometry Seminar, Hannover
- 03-04/2013 - Arithmetic and Geometry, Hausdorff Research Institute for Mathematics, Bonn
- 11/2012 - Rational Points and Algebraic Cycles, CIB, EPFL
- 10/2012 - Colloque Points entier - Points rationnels, Institut Fourier, Grenoble
- 10/2012 - Computing in Arithmetic Geometry, MSRI, Berkeley
- 10/2012 - Lie algebras, torsors and cohomological invariants, BIRS, Banff
- 09/2012 - ERC Research Period on Diophantine Geometry, Centro di Ricerca Matematica Ennio De Giorgi, Pisa
- 09/2012 - Cohomological Methods in Arithmetic Geometry, University of Zurich (part of Rational Points and Algebraic Cycles, CIB, EPFL)
- 08/2012 - Arithmetic Geometry, Oberwolfach
- 06/2012 - Analytic methods for diophantine problems, Göttingen
- 12/2011 - Okounkov solids, Pedagogical University Cracow
- 09/2011 - DMV-Jahrestagung, Köln
- 07/2011 - Sino-French summer institute on arithmetic geometry, Chern Institute of Mathematics, Tianjin
- 02/2011 - Arithmetic and Motivic Algebraic Geometry, Regensburg
- 01/2011 - Torsors: theory and applications, ICMS, Edinburgh
- 01/2011 - Density of Rational and Integral Points, Ein Gedi
- 07/2010 - Algebraic Geometry, Tübingen
- 07/2010 - Rational Points 3, Schloss Thurnau
- 05/2010 - Rational Points - Theory & Experiment, Zürich
- 04/2010 - Number Theory Days, Zürich
- 04/2010 - Analytic Number Theory, Göttingen
- 02/2010 - Conference on Algebraic Geometry and Arithmetic, Essen
- 07/2009 - Cox rings, Tübingen
- 05/2009 - Algebraic Geometry: Closing Lectures, MSRI, Berkeley
- 03/2009 - Combinatorial, Enumerative and Toric Geometry, MSRI, Berkeley
- 02/2009 - Modern Moduli Theory, MSRI, Berkeley
- 01/2009 - Classical Algebraic Geometry Today, MSRI, Berkeley
- 06/2008 - Rational Points on Curves and Higher Dimensional Varieties, Warwick
- 06/2008 - Geometric invariant theory, Göttingen
- 05/2008 - Summer school Variétés rationnellement connexes: aspects géométriques et arithmétiques, Strasbourg
- 12/2007 - Géométrie arithmétique et variétés rationnelles, CIRM, Luminy
- 09/2007 - Summer school International Research Training Group Arithmetic and Geometry, Alpbach
- 07/2007 - Rational Points on Curves and Higher-Dimensional Varieties: Theory and Explicit Methods, Jacobs University Bremen
- 07/2007 - Diophantine equations via analytic number theory, Bristol
- 06/2007 - Summer school Higher-Dimensional Geometry over Finite Fields, Göttingen
- 06/2007 - GAeL XV, Sabanci University, Istanbul
- 05/2007 - School and Conference on Analytic Number Theory, ICTP, Trieste
- 10/2006 - Oberwolfach Seminar Algebraic Stacks, MFO
- 07/2006 - Summer school Arithmetic Geometry, Göttingen
- 05/2006 - Analytic methods for diophantine equations, BIRS, Banff
- 03/2006 - Cohomological approaches to rational points, MSRI, Berkeley
- 12/2005 - Winter school Algebraic, Symplectic and Arithmetic Geometry, Miami
- 07/2005 - Summer school Equidistribution in Number Theory, Montreal
- 06/2005 - Summer school Algebraic groups, Göttingen
- 06/2005 - Gauss-Dirichlet-Konferenz, Göttingen
- 12/2004 - Magma-Workshop, Göttingen
- 08/2004 - Summer school Modular Forms and their Applications, Nordfjordeid
- 08/2004 - DMV-Tagung, Heidelberg
- 06/2004 - Summer school Diophantine Geometry, Göttingen