Invited lectures:
Conference "Young Tableaux and Schur Functors in Algebra and Geometry", Torun 1980
Conference on Commutative Algebra, Durham 1981
Algebraic Geometry Seminar, Louis Pasteur University, Strasbourg 1981 (4 lectures), 1983
Seminaire Lotharingien de Combinatoire, Sainte-Croix-aux-Mines 1983
Algebra Seminar, The University Roma Tor Vergata 1984
Seminaire d'Algebre Dubreil-Malliavin, Paris 1984, 1988
The Kuratowski Award Lecture at the Annual Meeting of Polish Math. Society,
Kielce 1985
Conference on Algebraic Geometry at Humboldt University, Berlin 1985
Algebraic Geometry Seminar, Brown University 1986
Shafarevich Seminar, Steklov Institute Moscow 1986
Banach Center Semester "Classical Algebraic Structures" (1+1) Warsaw 1988
Conference "Combinatorics, Special Functions and Representation theory",
Oberwolfach 1988
Algebraic Geometry Seminar, KTH Stockholm 1989
The Zeuthen Symposium, Copenhagen 1989
Algebraic Geometry Seminar, UBC Vancouver (4) 1989
Algebraic Geometry Seminar, The University of Ferrara (4) 1989
Algebraic Geometry Seminar, The University of Trento 1989
Algebraic Geometry Seminar. The University of Florence 1989
The Habilitation Lecture, IM PAN Warsaw 1990
Conference on Algebra and its Applications, National Polytechnic
Institute (2), Mexico City 1991
Algebraic Geometry Seminar, Bergen 1991
Algebraic Geometry Seminar, Oslo 1991
Algebraic Geometry Seminar, Tromso 1991
Algebraic Geometry Seminar, Complutense University, Madrid 1992
Conference "Intersection Theory and Enumerative Geometry",
Complutense University, Madrid 1992
Algebra Seminar, The University of Essen 1992
Commutative Algebra Seminar, The University of Osnabruck 1992
Algebraic Geometry Seminar, The University of Bayreuth 1992
Max-Planck Institut fur Mathematik Bonn (MPI-Oberseminar or Algebraic Geometry
Seminar) 1992, 1993, 1994, 1995, 1996, 2000, 2001, 2006
Le-Teissier Singularity Seminar , Ecole Normale Superieure (2) Paris 1993
Algebra Seminar, Scuola Normale Pisa 1993, 1995
Algebraic Geometry Seminar, University of Amsterdam 1995, 2000
Banach Center Colloquium, Warsaw 1995
Summer School "Degeneracy loci and Schubert Varieties" (5), Schloss Thurnau,
The University of Bayreuth 1995
Conference on Algebraic Geometry, ICTP Trieste 1995
Algebraic Geometry Seminar, The University of Chicago 1996
Algebraic Geometry Conference, Levico Terme 1996
Algebraic Geometry Conference, The University Roma Tor Vergata 1997
Algebraic Geometry Seminar, Weizmann Institute, Rehovot 1997
Colloquium, Universite d'Angers 1997
"International Conference on Intersection Theory", Bologna 1997, 1999
Singularity Seminar, Kagoshima University 1998
Conference "Singularities in Geometry and Topology", Sapporo 1998
Conference "Interaction of Combinatorics and Representation Theory" (2),
RIMS Kyoto 1998
Algebraic Geometry Seminar, Nagoya University 1998
Workshop on Singularities, Luminy 1999
Conference "Renaissance of Combinatorics", Nankai University, Tianjin 1999
Arithmetic and Algebraic Geometry Seminar, The Adam Mickiewicz University
Poznan 1999
Colloquium, The University of Szczecin 1999
Algebraic Geometry Seminar, University of Essen 2000
Conference "The Heritage of I. Schur's 1901 Dissertation", Gregynog Hall,
Newtown, Powys 2001
NSF/CBMS Conference on Algebraic Combinatorics, NCSU Raleigh 2001
MPI - IM PAN Symposium "Manifolds in Mathematics and in Other Fields", Banach
Center Warsaw 2002
Academy of Mathematics and System Sciences, Chinese Academy
of Sciences (4), Beijing 2002
Colloquium, Beijing University 2002
Algebraic Geometry Seminar, Guangzhou University 2002
Algebraic Geometry Conference, Institute of Mathematics of Romanian
Academy of Sciences (2), Bucharest 2002
Colloquium, The University of Gdansk 2002, 2007, 2014
Conference on Conceptual Mathematics, Grzegorzewice 2003
Conference "Algebraic Geometry, Algebra and Applications", Borovetz 2003
Seminaire Lotharangien de Combinatoire "LascouxFest", St. Jacques 2004
Russian-Polish School-Seminar, Banach Center Bedlewo 2004
Discrete Harmonic Analysis Seminar, The University of Wroclaw 2005
Algebraic Geometry Seminar, Bilkent-METU Ankara 2005
Antalya Algebra Days, Antalya 2005, 2007
Algebraic Geometry Seminar, Politecnico di Torino 2005, 2017
Harmonic Analysis, Banach Center Bedlewo 2005
Brieskorn's Singularity Seminar (2), Bonn University 2006
Conference "Real and Complex Singularities", Sao Carlos 2006, 2008
Algebraic Geometry Seminar (6), METU Ankara 2006
Colloquium, Tata Institute of Fundamental Research Mumbai 2007
Algebra Seminar, Chennai Mathematical Institute 2007
Ramanujan Gymnasium, Kumbakonam 2007
Algebra Seminar, Indian Institute of Technology Bombay 2007, 2009, 2018
Algebraic Geometry Seminar, RIMS Kyoto 2008, 2011, 2016, 2019
Algebraic Geometry Seminar, The University of Tokyo 2008, 2016
Colloquium, The University of Kagoshima 2008
2nd Forum of Polish Mathematicians, Czestochowa 2008
Colloquium, Institute of Mathematical Sciences Chennai 2009
Geometry Seminar, Indian Institute of Statistics Bangalore 2009
Conference "The Interplay of Algebra and Geometry" in honor of
C. De Concini, Cortona 2009
Mini-conference for SSDNM Phd-students, IM PAN Warsaw 2010
Feza Gursey Institute (4), Istanbul 2011
Conference "The Theory of Singularities", Hefei 2011
Colloquium, Jagiellonian University Cracow 2011
Conference "Arithmetic and Algebraic Geometry", The University of Tokyo 2012
Conference "Schubert Calculus", 5th MSJ-SI Osaka 2012
Algebraic Geometry Session of the DMV-PTM meeting, Poznan 2014
Algebra Seminar, Okayama University 2014
Lie Groups and Representation Theory Seminar, The University of Tokyo 2015, 2016
Algebraic Geometry Conference IMPANGA 15, Banach Center Bedlewo 2015
Thematic Program on Algebraic Geometry, IMPA Rio de Janeiro 2015
Kazarian-Lando Seminar, Laboratory of Algebraic Geometry and its Applications HSE,
Moscow 2015
A Weekly Seminar of Laboratory of Algebraic Geometry and its Applications HSE,
Moscow 2015
Joint Algebraic Geometry/History of Mathematics Seminar of Jagiellonian University,
Cracow , March 2016
Leopold Infeld Colloquium, Faculty of Physics, The University of Warsaw 2016
Okayama University of Science (2) June 2016, October 2019
Algebraic Geometry Seminar of Jagiellonian University, Cracow , October 2016
Algebraic Geometry Seminar of Hodge Institute, Edinburgh 2016
Arithmetic Algebraic Geometry Seminar, The University of Poznan 2016
Accademia Peloritana, Messina, May 2017
University of Palermo, May 2017
University of Messina, June 2017, July 2019 (2)
Algebraic Geometry Seminar of Jagiellonian University (a talk for Kamil Rusek), October 2017
International Festival in Schubert Calculus, Sun Yat-sen University, Guangzhou, November 2017
Geometrical Methods in Physics, IM PAN Warsaw, April 2018
Analytic Geometry Seminar of Jagiellonian University, Cracow, April 2018
Alfred Renyi Institute of Mathematics, Budapest, June 2018
Conference: "Geometry, Local and Global" in honour of V. Srinivas, TIFR Mumbai, October 2018
Algebraic Geometry Seminar, University of Szczecin, November 2018
Algebraic Geometry Conference in honour of T. Katsura, University of Tokyo,
December 2018
XV Szczecin Mathematical Colloquium, April 2019
Conference: "Real and complex singularities" in honour of A. Parusiński,
Institute Cargese (Corsica), May 2019
University Reggio Calabria, July 2019
Sapienza University of Rome, November 2019 (5)
Analytic Geometry Seminar, University of Lodz, online talk June 2020
Algebraic Geometry Seminar, Jagiellonian University, online talk November 2020, April 2021
Ohio State University, online talk May 2021
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