We show that the Euclidean Wasserstein distance between two compactly supported solutions of the one-dimensional porous medium equation having the same center of mass decays to zero for large times. As a consequence, we detect an improved L1-rate of convergence of solutions of the one-dimensional porous medium equation towards well-centered self-similar Barenblatt profiles, as time goes to infinity.

Strict contractivity of the 2-Wasserstein distance for the porous medium equation by mass-centering

DI FRANCESCO, MARCO;
2007-01-01

Abstract

We show that the Euclidean Wasserstein distance between two compactly supported solutions of the one-dimensional porous medium equation having the same center of mass decays to zero for large times. As a consequence, we detect an improved L1-rate of convergence of solutions of the one-dimensional porous medium equation towards well-centered self-similar Barenblatt profiles, as time goes to infinity.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/21394
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