05.10. - 07.10.2026
– Campus Golm, Building 9, Room 2.22 and 1.22
Workshop
The f(A)bulous workshop on matrix functions and exponential integrators
Contact: Melina Freitag
Alexander Strohmaier
I will review some known general expansions of microlocal spectral counting functions of Dirac and Laplace operators. In special cases these relate directly to heat kernel coefficients. I will then explain some differences between expansions for Laplace and Dirac type operators and show that generalized Dirac operators can be characterized amongst Dirac type operators by the vanishing of a certain coefficient appearing in the expansion of the spectral counting function. (Joint work with Liangpan Li)