Members

19 May 2005 – 22 May 2005
Teilnahme an Workshop

16 Jun 2005 – 19 Jun 2005
2nd Joint Meeting of the American Mathematical Society, Deutsche Mathematiker Vereinigung & Oesterreische Mathematische Gesellschaft, Mainz
Teilnahme

24 Jul 2005 – 13 Aug 2005
Teilnahme

11 Sep 2005 – 17 Sep 2005
Centre International de Rencontres Mathematiques,
Luminy, Frankreich
Konferenz Geometry & Singularities
Vortrag: Lower dimensional torus actions

29 Jan 2006 – 4 Feb 2006
Mathematisches Forschungsinstitut Oberwolfach
Tagungsleiter: Convex and Algebraic Geometry

7 Oct 2006 – 21 Oct 2006
Vortrag: Polyhedral divisions on $\overline{M}_{0,n}$

22 Nov 2006 – 25 Nov 2006
University of Warsaw
Vortrag gehalten:
Deformations of toric varieties

24 Nov 2006 – 25 Nov 2006

9 Sep 2007 – 20 Sep 2007
University of Warwick, UK

12 Oct 2007 – 12 Oct 2007
TU-Cottbus
Vortrag: ``Toric Invariants''

29 Nov 2007 – 30 Nov 2007
Universitaet Hannover
Teilnahme an "North German Algebraic Geometry Seminar"

31 Aug 2008 – 6 Sep 2008
University of Tokyo, Japan
Vortrag: "Smoothing of flag quivers"

4 Oct 2008 – 8 Oct 2008
Universitaet Bonn
Conference on Arithmetic Algebraic Geometry on the occasion of Michael Rapoport's 60th birthday
Teilnehmer

9 Oct 2008 – 13 Oct 2008
Budapest: Alfred Renyi Institute of Mathematics
Konferenz: Deformations of Surfaces
Vortrag: "Deformations of flag quivers"

4 Jan 2009 – 10 Jan 2009
Mathematisches Forschungsinstitut Oberwolfach
Organisator des Workshops "Toric Geometry"

19 Feb 2009 – 11 Apr 2009
MSRI, Berkeley, CA, USA
Forschung und Vortrag: "Self-intersections of polyhedral divisors"

20 Apr 2009 – 6 Jun 2009
MSRI, Berkeley, CA, USA
Forschung und Vortrag: "Deformation of complexity of 2 spaces"

1 Jul 2009 – 12 Jul 2009

27 Jul 2009 – 30 Jul 2009
Wissenschaftlicher Austausch und Vortragender "Der p-Divisor eines Cox-Ringes"

21 Sep 2009 – 25 Sep 2009
Mathematisches Forschungsinstitut Oberwolfach

30 Jan 2010 – 31 Jan 2010
Universitaet Amsterdam
Thema: "P-Divisoren und Apelsche Varietaeten"

6 Apr 2010 – 10 Apr 2010
University of Edinburgh, University of Glasgow, University of Warwick
Edinburgh, Schottland
Teilnahme am "BMC/BAMC 2-1- Special Session: Algebraic Geometry"
Vortrag: "The discrete content of Cox rings"

17 Jun 2010 – 18 Jun 2010
Universitaet Hannover
Teilnahme: North German Algebraic Geometry Seminar

4 Jul 2010 – 9 Jul 2010
Universitaet Warschau
Bedlewo, Polen
Teilnahme: "Impanga Summer School on Algebraic Geometry 2010"
Vortrag

18 Nov 2010 – 19 Nov 2010
Teilnahme: North German Algebraic Geometry Seminar

22 Feb 2011 – 27 Feb 2011
Imperial College London

20 Aug 2011 – 31 Aug 2011
Yekaterinburg, Russland
Moskau (Higher School of Economics, National Research University)
Teilnahme an 'International conference on algebra and geometry' und 'International school on algebra and algebraic geometry'

Forschungsbesprechung

18 Sep 2011 – 23 Sep 2011
Lukecin, Polen
Teilnahme an Sommerschule zur algebraischen Geometrie

15 Nov 2011 – 20 Nov 2011
Higher School of Economics, International Research University, Moscow, Russia
Forschungsbesprechung mit Prof. Valentina Kiritchenko

17 Mar 2013 – 23 Mar 2013
Kleinwalsertal, Austria
Participant: PEAKs 2013 Workshop (Perspectives and Emerging Topics in Algebra and Combinatorics)

16 Jun 2013 – 30 Jun 2013
CIRM: Research in Pairs, Trento, Italy
Research