The Fujita phenomenon in exterior domains under the dynamical boundary conditions - Archive ouverte HAL
Pré-Publication, Document De Travail Année : 2009

The Fujita phenomenon in exterior domains under the dynamical boundary conditions

Résumé

The Fujita phenomenon for nonlinear parabolic problems ∂tu = ∆u + up in an exterior domain of RN under the dynamical boundary conditions is investigated in the superlinear case. As in the case of Dirichlet boundary conditions, it turns out that there exists a critical exponent p = 1+2/N such that blow-up of positive solutions always occurs for subcritical exponents, whereas in the supercritical case global existence can occur for small non-negative initial data.
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Dates et versions

hal-00524377 , version 1 (08-10-2010)

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Jean-François Rault. The Fujita phenomenon in exterior domains under the dynamical boundary conditions. 2009. ⟨hal-00524377⟩
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