Well-posedness of the martingale problem for some degenerate diffusion processes occurring in dynamics of populations
Journal Article
(2004)
Research Group
Analysis
DOI related publication
https://doi.org/10.1016/j.bulsci.2004.03.004
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Publication Year
2004
Research Group
Analysis
Issue number
5
Volume number
128
Pages (from-to)
355-389
Abstract
In this paper we establish the well-posedness in C([0,);[0,1]d), for each starting point x [0,1]d, of the martingale problem associated with a class of degenerate elliptic operators which arise from the dynamics of populations as a generalization of the Fleming¿Viot operator. In particular, we prove that such degenerate elliptic operators are closable in the space of continuous functions on [0,1]d and their closure is the generator of a strongly continuous semigroup of contractions.
Author Keywords: Degenerate elliptic equations in nonregular domains; Generation of semigroup; Stochastic invariance; Fleming¿Viot operator; Martingale problem
35B45; 60J70; 35B65; 35J25
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