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2008/09/03
16:00-17:30 Room #002 (Graduate School of Math. Sci. Bldg.)
Fred Weissler (University of Paris 13)
Finite time blowup of oscillating solutions to the nonlinear heat equation
Fred Weissler (University of Paris 13)
Finite time blowup of oscillating solutions to the nonlinear heat equation
[ Abstract ]
(This is joint work with T. Cazenave and F. Dickstein.)
We study finite time blowup properties of solutions of the nonlinear heat equation, both on $R^N$, and on a ball in $R^N$ with Dirichlet boundary conditions. We show, among other results, that the set of initial values producing global solutions is not always star-shaped around the 0 solution. This contrasts with the case where only non-negative solutions are considered.
(This is joint work with T. Cazenave and F. Dickstein.)
We study finite time blowup properties of solutions of the nonlinear heat equation, both on $R^N$, and on a ball in $R^N$ with Dirichlet boundary conditions. We show, among other results, that the set of initial values producing global solutions is not always star-shaped around the 0 solution. This contrasts with the case where only non-negative solutions are considered.
