Vorträge

Tropical Geometry, Berkovich Spaces, Arithmetic D-Modules and p-adic Local Systems, Imperial College of London (online), December 7, 2020
Zoom Algebraic Geometry Seminar (ZAG), Edinburgh (online), September 17, 2020

HU Berlin, December 18, 2018
Summer school in Łukęcin on arithmetic of differential equations, September 3-7, 2018
Lecture series on models and degenerations of algebraic varieties
Recent Progress in the Arithmetic and Geometry of K3 Surfaces, CIRM,
Trento, July 11-13, 2018
KU Leuven, June 8, 2018
Universität des Saarlandes, Saarbrücken, May 24, 2018
Workshop on Complex Algebraic Geometry, Barcelona, February 5-9, 2018
Conference in honor of Gian Pietro Pirola's 60th birthday

TU Darmstadt, November 29-30, 2016
University of Padova, October 14, 2016
Higher Dimensional Algebraic Geometry and Characteristic p, Luminy, September 12-16, 2016
Lecture series on Crystalline Cohomology and Crystalline Period Domains
Arithmetic Geometry, Oberwolfach, August 7-13, 2016
Algebraic Geometry - Satellite Conference of 7 ECM, Hannover, July 13-16, 2016
Géométrie Algébrique en Liberté XXIV, Nesin Mathematics Village, June 13-17, 2016
Lecture series on Models of Curves, Abelian Varieties, and K3 Surfaces
Fakultätstag Mathematik, TU München, June 10, 2016
Moduli Spaces and Modular Forms, Oberwolfach, April 25-29, 2016
Laboratory of Algebraic Geometry, Moscow, April 6-8, 2016
BMS Student Conference, Berlin, February, 17-19, 2016

University of Warsaw and IM PAN, December 10-11, 2015
Moduli Spaces and Arithmetic Geometry, Lorentz Center, Leiden, November 9-13, 2015
Conference in honor of Frans Oort's 80th birthday
Geometry of algebraic varieties, HU Berlin, October 6-9, 2015
BIRS Workshop on Lifting Problems and Galois Theory, Banff, August 17-21, 2015
Conference on Algebraic Surfaces, Lisbon, July 1-3, 2015
Simons Symposium on Geometry Over Non-Closed Fields, Puerto Rico, March 23-27, 2015
Arithmetic and Algebraic Geometry 2015, University of Tokyo, January 29, 2015
Universität Ulm, January 20, 2015
Albert-Ludwigs-Universität Freiburg, January 16, 2015
Séminaire Autour des Cycles Algébriques, Jussieu, Paris, January 7, 2015

Korteweg-de Vries Institute for Mathematics, Amsterdam, December 18, 2014
Universität Augsburg, November 24, 2014
K3, Enriques Surfaces and Related Topics, Nagoya, November 10-14, 2014
Algebraic Geometry Symposium, Kinosaki, October 21-24, 2014
Seoul ICM 2014 Satellite Conference Algebraic and Complex Geometry, Daejeon, August 7, 2014
Johannes-Gutenberg Universität Mainz, July 24, 2014
Conference in honor of Faltings' 60th birthday, MPI Bonn, June 10, 2014
K3 surfaces and their moduli, Schiermonnikoog, May 4-9, 2014
Université Paris 6, Institut de mathématiques de Jussieu, March 27, 2014
Laboratory of Algebraic Geometry (Higher School of Economics), Moscow, March 6-11, 2014
Lecture series on crystals, formal groups, K3 surfaces, and unirationality
HIM Workshop: Birational geometry and foliations, Bonn, February 24-28, 2014
Schülertag TUM, February 7, 2014 Algebra: Komplexe Zahlen, Quaternionen und endliche Körper

Universität Duisburg-Essen, December 19, 2013
IRMA, Strasbourg, October 28 - November 1, 2013
Master class on the crystalline Torelli theorem for supersingular K3 surfaces
Università di Pisa, October 9, 2013
Workshop on Algebraic Surfaces Leibniz Universität Hannover, October 2, 2013
SCMS Lecture Series Fudan University, September 23-29, 2013
Lecture series on characteristic p geometry
Chinese Academy of Sciences, Beijing, October 20, 2013
Algebraic and Arithmetic Conference (AGAG) USTC Hefei, August 23-27, 2013
Universität Bielefeld, July 10, 2013
Ludwig Maximilians-Universität München, April 24, 2013
Nouvelles directions en arithmétique et géométrie des surfaces algébriques,
Luminy, March 14, 2013
Nagoya University, February 21-22, 2013
Lecture Series on Characteristic-p Geometry
Universität Bayreuth, January 23, 2013

University of Cyprus, Nicosia, September 19, 2012
Conference Algebraic and Complex Geometry,
Leibniz Universität Hannover, September 10-14, 2012
Conference on characteristic p and p-adic geometry,
Johannes Gutenberg Universität Mainz, June 4-8, 2012
Humboldt-Universität Berlin, May 29, 2012
Conference on Rational Points and Rational Curves, Universität Zürich, May 21-25, 2012
Cambridge University, May 2, 2012
Universität Bielefeld, April 25, 2012
Stanford University, March 9, 2012
Simons Symposium on Geometry Over Non-Closed Fields, Virgin Islands, February 26-March 3, 2012
Conference on Arithmetic and Algebraic Geometry, Tokyo, February 17, 2012

Universität Paderborn, December 14, 2011
Heinrich-Heine Universität Düsseldorf, November 25, 2011
Monstrous Moonshine (Habilitationskolloquium, 2nd talk)
Universität Osnabrück, November 1, 2011
Albert-Ludwigs-Universiät Freiburg, October 28, 2011
Albert-Ludwigs-Universität Freiburg, October 27, 2011
DMV-Jahrestagung in Köln, September 19, 2011
Workshop on Calabi-Yau manifolds, Toronto, August 19, 2011
Heinrich-Heine Universität Düsseldorf, June 10, 2011
Rational Curves on K3 Surfaces (Habilitationskolloquium, 1st talk)
Georgia Southern University, AMS Sectional Meeting, March 12, 2011

KIAS, Seoul, November 30, 2010
Seoul-Tokyo Conference on Arithmetic and Geometry, November 26, 2010
Sogang University, Seoul, November 25, 2010
Sogang University, Seoul, November 22, 2010
Stanford University, November 17, 2010
SUMO speaker series for undergraduates: Relativistic Addition and Group Theory
Leibniz Universität Hannover, November 1, 2010
Workshop on Elliptic Fibrations and K3 Surfaces, Berlin, July 15, 2010
Johannes-Gutenberg Universität Mainz, July 8, 2010

UC Berkeley, November 17, 2009
University of Utah, Salt Lake City, November 10, 2009
Stanford University, October 30, 2009
Sogang University, Seoul, October 19-22, 2009
Lecture series on Algebraic Surfaces in Positive Characteristic
Johannes-Gutenberg Universität Mainz, April 24, 2009

Algebraic Geometry in Positive Characteristics and Related Topics,
Nagoya University, November 5, 2008
Keio University, Tokyo, November 4, 2008
Instituto Superior Técnico, Lisbon, September 4, 2008
Conference on Algebraic Surfaces and Symplectic 4-manifolds,
University of Warwick, February 8, 2008

Bar-Ilan University at Ramat-Gan, July 27, 2004
to a security agent of El-Al at Frankfurt airport, July 25, 2004 extracts from my Ph.D. thesis
Universität Bayreuth, June 1, 2004
Universität des Saarlandes, Saarbrücken, March 12, 2004