Abstract
Assume that the pseudo differential operator -q(x,D) generates a Fellerian or sub-Markovian semigroup. Under some natural additional conditions on the symbol -q(x,ξ) we prove that the operator -q(x,D) is conservative if and only if q(x,0)≡0.
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Schilling, R.L. Conservativeness of Semigroups Generated by Pseudo Differntial Operators. Potential Analysis 9, 91–104 (1998). https://doi.org/10.1023/A:1008664419747
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DOI: https://doi.org/10.1023/A:1008664419747