Initial-boundary value problems for coupled systems of time-fractional diffusion equations
arxiv(2023)
摘要
This article deals with the initial-boundary value problem for a moderately coupled system of time-fractional diffusion equations. Defining the mild solution, we establish fundamental unique existence, limited smoothing property and long-time asymptotic behavior of the solution, which mostly inherit those of a single equation. Owing to the coupling effect, we also obtain the uniqueness for an inverse problem on determining all the fractional orders by the single point observation of a single component of the solution.
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关键词
Time-fractional diffusion equation (primary),Coupling system (primary),Asymptotic behavior,Inverse problem
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