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Mixed Boundary Value Problems of Semilinear Elliptic PDEs and BSDEs with Singular Coefficients (1112.3148v1)
Published 14 Dec 2011 in math.PR and math.AP
Abstract: In this paper, we prove that there exists a unique weak solution to the mixed boundary value problem for a general class of semilinear second order elliptic partial differential equations with singular coefficients. Our approach is probabilistic. The theory of Dirichlet forms and backward stochastic differential equations with singular coefficients and infinite horizon plays a crucial role.