**Overview**

**Upcoming events**

- BPS states, topological recursion, exact WKB and abelianisation

25-28 November 2019, University of Hamburg

**Regular events**

- Seminar Quantum Physics and Geometry
- Colloquium of the ZMP
- Quantum Field Theory and Mathematical Physics
- DESY String Theory Seminar
- Colloquium Reine Mathematik

**History**

- Summerschool: Algebraic Structures in Quantum Field Theory, 26-30 August 2019,
University of Hamburg
- Higgs Bundles in Mathematics and Physics, 10-14 September 2018,
University of Hamburg
- Ricci flow, mean curvature flow and related singular flows, 3-6 September 2018,
University of Hamburg
- Field equations on Lorentzian space-times, 19-23 March 2018,
University of Hamburg
- Meeting on non-semisimple TFT and logarithmic CFT, 7-9 February 2018,
University of Hamburg
- Quantum Physics meets Mathematics - a workshop on the occasion of Klaus Fredenhagens 70th birthday, 8-9 Dec 2017,
University of Hamburg
- Stringmath 2017, 24-28 July 2017,
University of Hamburg
- Summer School 'Pre-StringMath Summer School', 17-21 July 2017,
Department of Mathematics, University of Hamburg
- Lessons from conformal field theory, 8-9 Jun 2017, University of Hamburg
- Colloquium in memoriam Rudolf Haag, 26-27 Sep 2016,
University of Hamburg
- Summerschool
'Geometric Flows and the Geometry of Space-time', 19-23 Sep 2016,
University of Hamburg
- Summer School 'String Topology and Rational Homotopy Theory', 02-04 Sep 2015,
University of Hamburg
- Workshop "Infinite-dimensional Structures in Higher Geometry and Representation Theory", 16-20 Feb 2015,
Department of Mathematics, University of Hamburg
- Workshop "Special Geometric Structures in Mathematics and Physics", 8-12 Sept 2014,
Department of Mathematics, University of Hamburg
- Summer School 'Quantum groups and integrability - Algebraic, analytic and geometric aspects', 21-25 July 2014,
Department of Mathematics, University of Hamburg
- Summer School on Moduli Spaces in Algebraic Geometry and Physics, 12-16 Aug 2013,
Department of Mathematics, University of Hamburg
- Festkolloquium, 02.05.2013,
for Professor Dr. Klaus Fredenhagen
- Workshop on Field Theories with Defects, 13-15 Feb 2013,
Department of Mathematics, University of Hamburg
- Summer School on Differential Geometry and Supersymmetry, 10-14 Sep 2012,
Department of Mathematics, University of Hamburg
- New Perspectives in Topological Field Theories

(August 27 - 31, 2012) - Mathematical Aspects of Quantum Theory and Quantum Statistical Mechanics (July 30 - August 1, 2012)
- Higher Structures in Topology and Geometry V , May 25-27 2011, Department of Mathematics, University of Hamburg
- Workshop on "Foundational Aspects of Cosmology", 16th-18th February, 2011,
II. Institut of Theoretical Physics,
DESY, Hamburg

Organizing Committee: Claudio Dappiaggi, Klaus Fredenhagen, Thomas Hack, Jan Schlemmer, Rainer Verch - From Sigma Models to Four-dimensional QFT, From Sigma Models to Four-dimensional QFT
Nov. 29th to Dec. 3rd, 2010
DESY Hamburg, Germany
- Seminar, Transformation Groups and Mathematical Physics
- Summerschool, BPS state counting, stability structures and derived algebraic geometry, 31 August
- Workshop on Applied 2d Sigma Models, 10th - 14th November, 2008, DESY Hamburg.
- Workshop "Holonomy Groups and Applications in String Theory", 14th-18th July, 2008, University of Hamburg,
Organizers: Vicente Cortés, Thomas Leistner
- 22nd Workshop "Foundations and Constructive Aspects of Quantum Field Theory", June 06th and 07th, 2008, Organizers are: K. Fredenhagen, C. Dappiaggi & N. Pinamonti
- Klaus Fredenhagen's Birthday Colloquium, taking place in Hamburg on December 7th to celebrate Klaus
Fredenhagen's 60th birthday.
- Workshop on the Geometric Langlands Program, including connections to CFT, integrable
models and gauge theory, taking place at DESY, Hamburg from July 9th to 13th.
- Workshop on Elliptic Cohomology
- Kähler Geometry and Mathematical Physics, Workshop on the occasion of Kähler's 100th and Riemenschneider's 65th birthday, November 24th to 25th, 2006, hold by the Department of Mathematics (University of Hamburg) and the Center of Mathematical Physics
- Loop Groups and their Application in Geometry and Physics, Block seminar in Nordseebad Borkum, June 18th to 23rd,
organized by Christian Becker, Konrad Waldorf and Anna Wienhard
- Workshop Strings and High Energy QCD, Dates: May 17-19, Location: Sem 2 (building 2a), Uni Hoersaal (Geb 61)
Organizers: J. Bartels, L. Lipatov, J. Louis and V. Schomerus
- 18th Workshop on Foundations and Constructive Aspects of QFT, taking place 12/13 May 2006 at DESY (Hamburg)
- 1st Northern German String workshop, February 13/14, organized by Jan Louis and Volker Schomerus (Program, List of participants).
- Opening colloquium, at the main building of Hamburg University, October 20-22, 2005.
- Gerbes, twisted K-theory and conformal field theory, Oberwolfach-Miniworkshop, August 14-20, 2005
- Lessons from low dimensions - the many aspects of Conformal Field Theory, International Workshop, April 8-10, 2005
- Geometric aspects of conformal field theory, Block seminar, Febuary 6-12, 2005