A “Lakes and Rivers” Interpretation for the Singular Limit of a Nonlinear Diffusion PDE
نویسندگان
چکیده
We introduce a new PDE free boundary problem that in a singular limit admits an interesting metaphoric interpretation, describing how “water” originating from “rainfall” flows along a landscape of varying height, forming “lakes” and also “rivers” and “surface flows”, the latter described by transport equations along downhill gradient flows.
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