Fractional-Parabolic Systems

Details Fractional-Parabolic Systems Fractional-Parabolic Systems

2010-09-25

arxiv.org/abs/1009.4996v2

Mathematics

Analysis of PDEs

31 pages. Final version, to appear in Potential Analysis

Scientific paper

We develop a theory of the Cauchy problem for linear evolution systems of partial differential equations with the Caputo-Dzrbashyan fractional derivative in the time variable $t$. The class of systems considered in the paper is a fractional extension of the class of systems of the first order in $t$ satisfying the uniform strong parabolicity condition. We construct and investigate the Green matrix of the Cauchy problem. While similar results for the fractional diffusion equations were based on the H-function representation of the Green matrix for equations with constant coefficients (not available in the general situation), here we use, as a basic tool, the subordination identity for a model homogeneous system. We also prove a uniqueness result based on the reduction to an operator-differential equation.

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