Abstract
This paper is concerned with the study of the diffusion process associated with a nondivergence form elliptic operator in d dimensions, d≥2. The authors introduce a new technique for studying the diffusion, based on the observation that the probability of escape from a d−1 dimensional hyperplane can be explicitly calculated. They use the method to estimate the probability of escape from d−1 dimensional manifolds which are C 1, α, and also d−1 dimensional Lipschitz manifolds. To implement their method the authors study various random walks induced by the diffusion process, and compare them to the corresponding walks induced by Brownian motion.
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Conlon, J.G., Song, R. Random Walks Associated with Non-Divergence Form Elliptic Equations. Journal of Theoretical Probability 13, 427–489 (2000). https://doi.org/10.1023/A:1007893424255
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DOI: https://doi.org/10.1023/A:1007893424255