Held regularly at the Department of Mathematics, Instituto Superior Técnico, Lisbon.

Held every two years. Sixth meeting: Kyiv (Kiev), Ukraine; 20--26 June 2005.

Research session at the Isaac Newton Institute for Mathematical Sciences, Cambridge, UK; 8 August -- 23 December 2005.

Formerly Meetings on Knot Theory and Physics: held annually in Oporto, Portugal to bring together mathematicians and physicists interested in the inter-relation between geometry, topology and physics.

Mechanics and Symmetry in Europe: a series of meetings, supported by the London Mathematical Society.

Workshop in the program on the Geometry of String Theory. Perimeter Institute for Theoretical Physics, Waterloo, Canada; 28 March -- 1 April 2005.

Research session at MSRI, Berkeley, CA, USA; 9 January -- 19 May 2006.

Research programme at the Isaac Newton Institute for Mathematical Sciences, Cambridge, UK; 9 January -- 30 June 2006.

A series of research conferences. SPT2004: Cala Gonone, Sardinia, Italy; 30 May -- 6 June 2004.

Workshop in the program on the Geometry of String Theory. Fields Institute, Toronto, Canada; 2--6 May 2005.