T&G: Chris Wendl (HU Berlin), On transversality and symmetry

Tue, 14/12/202118:00-19:00
Many deep results in modern geometry depend on transversality results, e.g. in gauge theory or symplectic topology, one needs certain moduli spaces of solutions to elliptic PDEs such as Seiberg-Witten monopoles or pseudoholomorphic curves to be "transversely cut out", so that they are smooth and have the expected dimension. A problem arises: these PDEs often come with natural symmetries, and everyone knows that you can't have transversality and symmetry at the same time. In this talk, I will outline a general strategy to deal with transversality without sacrificing symmetry, and discuss what conditions need to be checked before you can apply it to your geometric favorite PDE.