English

Existence of weak solutions to a continuity equation with space time nonlocal Darcy law

Analysis of PDEs 2020-08-19 v7

Abstract

In this manuscript we consider a porous medium equation with non-local diffusion effects given by a fractional heat operator t+(Δ)s\partial_t + (-\Delta)^s in two space dimensions. Global in time existence of weak solutions is shown by employing a time semi-discretization of the equations, an energy inequality, a higher order integral estimate, and a generalized version of the Div-Curl lemma.

Keywords

Cite

@article{arxiv.1805.08666,
  title  = {Existence of weak solutions to a continuity equation with space time nonlocal Darcy law},
  author = {Luis Caffarelli and Maria Gualdani and Nicola Zamponi},
  journal= {arXiv preprint arXiv:1805.08666},
  year   = {2020}
}