In this paper, we study the transition densities of pure-jump symmetric Markov processes in
ℝ d, whose jum** kernels are comparable to radially symmetric functions with mixed …

We construct the fundamental solution (the heat kernel) p κ to the equation∂ t= L κ, where
under certain assumptions the operator L κ takes one of the following forms, L κ f (x):=∫ R d …

Let α (x) be a measurable function taking values in [α 1, α 2] for 0< α 1⩽ α 2< 2, and κ (x, z)
be a positive measurable function that is symmetric in z and bounded between two positive …