2021

University of Illinois Chicago (online), November 29, 2021

Shafarevich Seminar, Steklov Institute, Moscow (online), February 2, 2021
2020
 Tropical Geometry, Berkovich Spaces, Arithmetic DModules and padic Local Systems, Imperial College of London (online), December 7, 2020
 Zoom Algebraic Geometry Seminar (ZAG), Edinburgh (online), September 17, 2020
2019
 Periods and Motives, HU Berlin, July 11, 2019
 Ludwig MaximiliansUniversität München, May 15, 2019
 AlbertLudwigsUniversität Freiburg, February 1, 2019
2018
 HU Berlin, December 18, 2018
 Summer school in Łukęcin on arithmetic of differential equations, September 37, 2018
Lecture series on models and degenerations of algebraic varieties  Recent Progress in the Arithmetic and Geometry of K3 Surfaces, CIRM,
Trento, July 1113, 2018  KU Leuven, June 8, 2018
 Universität des Saarlandes, Saarbrücken, May 24, 2018
 Workshop on Complex Algebraic Geometry, Barcelona, February 59, 2018
Conference in honor of Gian Pietro Pirola's 60th birthday
2017
 Higgs Bundles, K3 Surfaces, and Moduli, HU Berlin, July 12, 2017
 AIM SQuaRE, San Jose, June 26  30, 2017
 Nordic Number Theory Network: N^{3}days VI, Copenhagen, June 2, 2017
 Universität Münster, April 25, 2017
 University of Bergen, March 29, 2017
 FU Berlin, February 1, 2017
 JohannesGutenberg Universität Mainz, January 26, 2017
2016
 TU Darmstadt, November 2930, 2016
 University of Padova, October 14, 2016
 Higher Dimensional Algebraic Geometry and Characteristic p, Luminy, September 1216, 2016
Lecture series on Crystalline Cohomology and Crystalline Period Domains  Arithmetic Geometry, Oberwolfach, August 713, 2016
 Algebraic Geometry  Satellite Conference of 7 ECM, Hannover, July 1316, 2016
 Géométrie Algébrique en Liberté XXIV, Nesin Mathematics Village, June 1317, 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 2529, 2016
 Laboratory of Algebraic Geometry, Moscow, April 68, 2016
 BMS Student Conference, Berlin, February, 1719, 2016
2015
 University of Warsaw and IM PAN, December 1011, 2015
 Moduli Spaces and Arithmetic Geometry, Lorentz Center, Leiden, November 913, 2015
Conference in honor of Frans Oort's 80th birthday  Geometry of algebraic varieties, HU Berlin, October 69, 2015
 BIRS Workshop on Lifting Problems and Galois Theory, Banff, August 1721, 2015
 Conference on Algebraic Surfaces, Lisbon, July 13, 2015
 Simons Symposium on Geometry Over NonClosed Fields, Puerto Rico, March 2327, 2015
 Arithmetic and Algebraic Geometry 2015, University of Tokyo, January 29, 2015
 Universität Ulm, January 20, 2015
 AlbertLudwigsUniversität Freiburg, January 16, 2015
 Séminaire Autour des Cycles Algébriques, Jussieu, Paris, January 7, 2015
2014
 Kortewegde Vries Institute for Mathematics, Amsterdam, December 18, 2014
 Universität Augsburg, November 24, 2014
 K3, Enriques Surfaces and Related Topics, Nagoya, November 1014, 2014
 Algebraic Geometry Symposium, Kinosaki, October 2124, 2014
 Seoul ICM 2014 Satellite Conference Algebraic and Complex Geometry, Daejeon, August 7, 2014
 JohannesGutenberg Universität Mainz, July 24, 2014
 Conference in honor of Faltings' 60th birthday, MPI Bonn, June 10, 2014
 K3 surfaces and their moduli, Schiermonnikoog, May 49, 2014
 Université Paris 6, Institut de mathématiques de Jussieu, March 27, 2014
 Laboratory of Algebraic Geometry (Higher School of Economics), Moscow, March 611, 2014
Lecture series on crystals, formal groups, K3 surfaces, and unirationality  HIM Workshop: Birational geometry and foliations, Bonn, February 2428, 2014
 Schülertag TUM, February 7, 2014 Algebra: Komplexe Zahlen, Quaternionen und endliche Körper
2013
 Universität DuisburgEssen, 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 2329, 2013
Lecture series on characteristic p geometry  Chinese Academy of Sciences, Beijing, October 20, 2013
 Algebraic and Arithmetic Conference (AGAG) USTC Hefei, August 2327, 2013
 Universität Bielefeld, July 10, 2013
 Ludwig MaximiliansUniversität München, April 24, 2013
 Nouvelles directions en arithmétique et géométrie des surfaces algébriques,
Luminy, March 14, 2013  Nagoya University, February 2122, 2013
Lecture Series on Characteristicp Geometry  Universität Bayreuth, January 23, 2013
2012
 University of Cyprus, Nicosia, September 19, 2012
 Conference Algebraic and Complex Geometry,
Leibniz Universität Hannover, September 1014, 2012  Conference on characteristic p and padic geometry,
Johannes Gutenberg Universität Mainz, June 48, 2012  HumboldtUniversität Berlin, May 29, 2012
 Conference on Rational Points and Rational Curves, Universität Zürich, May 2125, 2012
 Cambridge University, May 2, 2012
 Universität Bielefeld, April 25, 2012
 Stanford University, March 9, 2012
 Simons Symposium on Geometry Over NonClosed Fields, Virgin Islands, February 26March 3, 2012
 Conference on Arithmetic and Algebraic Geometry, Tokyo, February 17, 2012
2011
 Universität Paderborn, December 14, 2011
 HeinrichHeine Universität Düsseldorf, November 25, 2011
Monstrous Moonshine (Habilitationskolloquium, 2nd talk)  Universität Osnabrück, November 1, 2011
 AlbertLudwigsUniversiät Freiburg, October 28, 2011
 AlbertLudwigsUniversität Freiburg, October 27, 2011
 DMVJahrestagung in Köln, September 19, 2011
 Workshop on CalabiYau manifolds, Toronto, August 19, 2011
 HeinrichHeine Universität Düsseldorf, June 10, 2011
Rational Curves on K3 Surfaces (Habilitationskolloquium, 1st talk)  Georgia Southern University, AMS Sectional Meeting, March 12, 2011
2010
 KIAS, Seoul, November 30, 2010
 SeoulTokyo 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
 JohannesGutenberg Universität Mainz, July 8, 2010
2009
 UC Berkeley, November 17, 2009
 University of Utah, Salt Lake City, November 10, 2009
 Stanford University, October 30, 2009
 Sogang University, Seoul, October 1922, 2009
Lecture series on Algebraic Surfaces in Positive Characteristic  JohannesGutenberg Universität Mainz, April 24, 2009
2008
 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 4manifolds,
University of Warwick, February 8, 2008
2007
 JohannesGutenberg Universität Mainz, November 20, 2007
 Universität Ulm, June 27, 2007
 Leibniz Universität Hannover, May 10, 2007
 MaxPlanckInstitute für Mathematik Bonn, April 12, 2007
 RuhrUniversität Bochum, January 22, 2007
2006
 Universität zu Köln, November 8, 2006
 University of Crete, February 21, 2006
2005
 Géométrie Algébrique en Liberté XIII, Luminy, March 21, 2005
 Alfréd Rényi Institute Budapest, March 4, 2005
 Universität Leipzig, January 12, 2005
2004
 BarIlan University at RamatGan, July 27, 2004
 to a security agent of ElAl at Frankfurt airport, July 25, 2004 extracts from my Ph.D. thesis
 Universität Bayreuth, June 1, 2004
 Universität des Saarlandes, Saarbrücken, March 12, 2004