Organisation of meetings

19.09 - 22.09.1994 Days of Hyperbolic Geometry, Gdansk
25.08 - 5.09.1997 Summer School of Geometric Group Theory, Banach Center, Warszawa (with Benson Farb)
31.08 - 2.09.1998 Second Days of Hyperbolic Geometry in memoriam of Wilhelm Killing, Braniewo
09.09 - 12.09.2002 Third Days of Hyperbolic Geometry, Gdansk
1999 - 2023 Andrzej Jankowski Memorial Lectures, Gdansk AJL
1999G. Segal
2000S. Weinberger
2001Ch. Soule
2002O. Viro
2003S. Cappell
2004M. Kontsevich
2005 (Cracow)T. Mrowka
2006M. Kapovich
2007M. Weiss
2008M. Bridson
2009 (Warsaw)M. Bestvina
2010A. Bondal
2011D. Joyce
2012P. Teichner
2013E. Breuillard
2014P. Ozsvath
2015P. Seidel
2016B. Farb
2017H. Esnault
2018J. Huh
2019Pham Huu Tiep
2023Aaron Naber
04.09 - 08.09.2006 Plenary Meeting of the Polish Mathematical Society (I Forum Matematykow Polskich) - Gdansk (chairman of organisation committee)
09.06 - 13.06.2008 Conference on Algebraic and Geometric Topology - Gdansk, CAGT
24.07 - 25.07.2008 Killing-Weierstrass Colloquium (Braniewo)
24.03 - 26.03.2010 The Second Killing-Weierstrass Colloquium (Braniewo))
28.03 - 30.03.2012 The Third Killing-Weierstrass Colloquium (Braniewo))
18.07 - 22.07.2022 The fourth Killing-Weierstrass Colloquium (Gdansk - Braniewo)