Carrillo Menéndez, JoséChallal , S.Lyaghfouri, A.2023-06-202023-06-2020021343-4373https://hdl.handle.net/20.500.14352/57409We consider a free boundary problem related to a stationary flow of fresh and salt water in a coastal aquifer. The flow is governed by a nonlinear Darcy’s law. Existence and uniqueness of a monotone solution are proved.A free boundary problem for a flow of fresh and salt groundwater with nonlinear Darcy’s law.journal articlemetadata only access550.3Geofísica2507 Geofísica