Probability Seminar: Takashi Kumagai

  • Date: 06/23/2016
  • Time: 15:00
Takashi Kumagai, RIMS Kyoto

University of British Columbia


We consider mixed-type jump processes on metric measure spaces and prove the stability of two-sided heat kernel estimates, heat kernel upper bounds, and parabolic  Harnack inequalities. We establish their stable equivalent characterizations in terms of the jump kernels, modifications of cut-off Sobolev inequalities, and the Poincar\'e inequalities. In particular, we prove the stability of heat kernel estimates for $\alpha$-stable-like processes even with $\alpha\ge 2$, which has been one of the major open problems in this area. We will also explain applications to stochastic processes on fractals.  


This is a joint work with Z.Q. Chen (Seattle) and J. Wang (Fuzhou).

Other Information: 

Location: ESB 2012