Chen, Zhen-qing et al., On heat kernel estimates and parabolic Harnack inequality for jump processes on metric measure spaces, Acta mathematica Sinica. English series (Print) , 25(7), 2009, pp. 1067-1086
In this paper, we discuss necessary and sufficient conditions on jumping kernels for a class of jump-type Markov processes on metric measure spaces to have scale-invariant finite range parabolic Harnack inequality