| Literature DB >> 25045309 |
Peter Straka1, Mark M Meerschaert1, Robert J McGough2, Yuzhen Zhou1.
Abstract
Fractional wave equations with attenuation have been proposed by Caputo [5], Szabo [27], Chen and Holm [7], and Kelly et al. [11]. These equations capture the power-law attenuation with frequency observed in many experimental settings when sound waves travel through inhomogeneous media. In particular, these models are useful for medical ultrasound. This paper develops stochastic solutions and weak solutions to the power law wave equation of Kelly et al. [11].Entities:
Keywords: Fractional derivative; attenuation; continuous time random walk; dispersion; stable law; subordination; wave equation
Year: 2013 PMID: 25045309 PMCID: PMC4102009 DOI: 10.2478/s13540-013-0016-9
Source DB: PubMed Journal: Fract Calc Appl Anal ISSN: 1314-2224 Impact factor: 3.126