Record Details

Skew Disperson and Continuity of Local Time

ScholarsArchive at Oregon State University

Field Value
Title Skew Disperson and Continuity of Local Time
Names
Date Issued 2014-07 (iso8601)
Note This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Springer and can be found at: http://link.springer.com/journal/10955.
Abstract Results are provided that highlight the effect of interfacial discontinuities in the
diffusion coefficient on the behavior of certain basic functionals of the diffusion, such
as local times and occupation times, extending previous results in [2, 3] on the behavior
of first passage times. The main goal is to obtain a characterization of large scale
parameters and behavior by an analysis at the fine scale of stochastic particle motions.
In particular, considering particle concentration modeled by a diffusion equation with
piecewise constant diffusion coefficient, it is shown that the continuity of a natural
modification of local time is the individual (stochastic) particle scale equivalent to continuity
of flux at the scale of the (macroscopic) particle concentrations. Consequences
of this involve the determination of a skewness transmission probability in the presence
of an interface, as well as corollaries concerning interfacial effects on occupation time
of the associated stochastic particles.
Genre Article
Topic Dispersion
Identifier Appuhamillage, T. A., Bokil, V. A., Thomann, E. A., Waymire, E. C., & Wood, B. D. (2014). Skew Disperson and Continuity of Local Time. Journal of Statistical Physics, 156(2), 384-394. doi:10.1007/s10955-014-1010-2

© Western Waters Digital Library - GWLA member projects - Designed by the J. Willard Marriott Library - Hosted by Oregon State University Libraries and Press