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The waiting time property for parabolic problems trough the nondiffusion of support for the stationary problems.

Luis Alvarez, Jesús Ildefonso Díaz (2003)

RACSAM

In this note we study the waiting time phenomenon for local solutions of the nonlinear diffusion equation through its connection with the nondiffusion of the support property for local solutions of the family of discretized elliptic problems. We show that, under a suitable growth condition on the initial datum near the boundary of its support, a finite part of the family of solutions of the discretized problem maintain unchanged its support.

Thin vortex tubes in the stationary Euler equation

Alberto Enciso, Daniel Peralta-Salas (2013)

Journées Équations aux dérivées partielles

In this paper we outline some recent results concerning the existence of steady solutions to the Euler equation in 3 with a prescribed set of (possibly knotted and linked) thin vortex tubes.

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