Mittag Leffler

From mid October to mid December I got to visit the Institut Mittag-Leffler in Stockholm for the research program: “General Relativity, Geometry and Analysis: beyond the first 100 years after Einstein “.
Given the number of people attending, I can’t list everyone but it was easily one of the best research events I have ever been to. The setting in the old villa feels like Hogwarts for mathematicians and it provides a unique environment. At almost any time of the day you’d hear people discuss in every cozy corner of the house (of which there are many). I’ve never before been working on mathematics in such a lively atmosphere.

I was able to give an informal lecture on Kerr uniqueness and T-orthogonal trapping and held the inaugural Gösta Guerilla lecture giving an introduction to the theory of Causal Fermion Systems. Following the informal lecture, Carla Cederbaum, OliverLindblad Petersen, Klaus Kröncke, Eric Ling and myself had several meetings where we had time to discuss the various obstacles in the way of a uniqueness proof for stationary black hole space times in the non-analytical setting. Some new ideas came out of this, but as I’ve already had too many ideas on this problem (which ultimately turned out not to work ) I’m not too optimistic on that one.

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