Acta mathematica scientia,Series A ›› 2008, Vol. 28 ›› Issue (6): 1187-1193.
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Li Fucai
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Abstract:
This paper investigates the nonnegative solutions of quasi-linear degenerate parabolic system
ut-div(|▽u|p-2 ▽u) =avα, vt-div(|▽v|q-2 ▽v) =buβ with zero Dirichlet boundary conditions in a smooth bounded domain Ω( RN (N≥ 1), where p, q>2, α, β ≥ 1, a, b>0 are constants. It is obtained that whether the solution blows up in finite time or not depends on the initial data, the coefficients a and b, and the relation between αβ and (p-1)(q-1).
Key words: Quasi-linear degenerate parabolic system, Nonlinear source, Global existence, Blow-up
CLC Number:
Li Fucai. Global Existence and Blow-up of Solutions to a Quasi-linear Degenerate Parabolic System[J].Acta mathematica scientia,Series A, 2008, 28(6): 1187-1193.
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