Global Properties of Transition Kernels Associated with Second-order Elliptic Operators
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We study global regularity properties of transitions kernels associated with second-order differential operators in R N with unbounded drift and potential terms. Under suitable conditions, we prove Sobolev regularity of transition kernels and pointwise upper bounds. As an application, we obtain sufficient conditions implying the differentiability of the associated semigroup on the space of bounded and continuous functions on R N.
KeywordsSemigroups transition kernels parabolic regularity Lyapunov functions.
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