The field-road diffusion model: Fundamental solution and asymptotic behavior

نویسندگان

چکیده

We consider the linear field-road system, a model for fast diffusion channels in population dynamics and ecology. This system takes form of PDEs set on domains different dimensions, with exchange boundary conditions. Despite intricate geometry problem, we provide an explicit expression its fundamental solution to associated Cauchy problem. The main tool is Fourier (on road variable)/Laplace time) transform. In addition, derive estimates decay rate L∞ norm these solutions.

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ژورنال

عنوان ژورنال: Journal of Differential Equations

سال: 2023

ISSN: ['1090-2732', '0022-0396']

DOI: https://doi.org/10.1016/j.jde.2023.05.002