Some existence and regularity results for a non-local transport-diffusion equation with fractional derivatives in time and space

Diego Chamorro (1) , Miguel Yangari (2)

1 LaMME - Laboratoire de Mathématiques et Modélisation d'Evry
2 EPN - Escuela Politécnica Nacional

We study the existence of global weak solutions of a nonlinear transport-diffusion equation with a fractional derivative in the time variable and under some extra hypotheses, we also study some regularity properties for this type of solutions. In the system considered here, the diffusion operator is given by a fractional Laplacian and the nonlinear drift is assumed to be divergence free and it is assumed to satisfy some general stability and boundedness properties in Lebesgue spaces.

Mots clés: Nonlocal diffusion; Riemann-Liouville derivative; Fractional Laplacian; Energy Inequality. MSC2020: 35R11; 35B50; 35B65

Domaines: Equations aux dérivées partielles [math.AP]

Diego Chamorro, Miguel Yangari. Some existence and regularity results for a non-local transport-diffusion equation with fractional derivatives in time and space. 2022. ⟨hal-03618197⟩