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An extinction delay mechanism for some evolution equations
(2007-09)
We study the ”finite extinction phenomenon”(there exists t0 ≥ 0 such that u(t, x) ≡ 0 ∀t ≥ t0, a.e. x ∈ Ω) for solutions of parabolic reaction-diffusion equations of the type ∂u ∂t − k∆u+λb(t)f(u(t − τ, x)) = 0 and ordinary ...