Degenerate Diffusion Operators Arising in Population Biology - download pdf or read online

By Charles L. Epstein,Rafe Mazzeo

ISBN-10: 069115712X

ISBN-13: 9780691157122

ISBN-10: 0691157154

ISBN-13: 9780691157153

This booklet presents the mathematical foundations for the research of a category of degenerate elliptic operators outlined on manifolds with corners, which come up in various purposes akin to inhabitants genetics, mathematical finance, and economics. the implications mentioned during this publication turn out the distinctiveness of the answer to the Martingale challenge and as a result the lifestyles of the linked Markov process.

Charles Epstein and Rafe Mazzeo use an "integral kernel procedure" to advance mathematical foundations for the examine of such degenerate elliptic operators and the stochastic methods they outline. the proper nature of the degeneracies of the significant image for those operators ends up in suggestions of the parabolic and elliptic difficulties that demonstrate novel regularity homes. Dually, the adjoint operator permits particularly dramatic singularities, comparable to measures supported on excessive codimensional strata of the boundary. Epstein and Mazzeo identify the distinctiveness, lifestyles, and sharp regularity homes for recommendations to the homogeneous and inhomogeneous warmth equations, in addition to a whole research of the resolvent operator performing on Hölder areas. They express that the semigroups outlined via those operators have holomorphic extensions to the fitting half-plane. Epstein and Mazzeo additionally exhibit unique asymptotic effects for the long-time habit of options to either the ahead and backward Kolmogorov equations.

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Degenerate Diffusion Operators Arising in Population Biology (AM-185) (Annals of Mathematics Studies) by Charles L. Epstein,Rafe Mazzeo

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