Blow-up for sign-changing solutions of the critical heat equation in domains with a small hole
Blow-up for sign-changing solutions of the critical heat equation in domains with a small hole
复制标题
小孔域中临界热方程变号解的放大
DOI:
10.1142/s0219199715500170
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发表时间:
2014
影响因子:
1.6
通讯作者:
A. Pistoia
中科院分区:
文献类型:
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作者:
I. Ianni;M. Musso;A. Pistoia
We consider the critical heat equation vt − Δv = |v| 4 N−2vΩϵ × (0, +∞),v = 0∂Ωϵ × (0, +∞),(CH)v = v0in Ωϵ ×{t = 0} in Ωϵ := Ω∖Bϵ(x0) where Ω is a smooth bounded domain in ℝN,N ≥ 3 and Bϵ(x0) is a ball of ℝN of center x0 ∈ Ω and radius ϵ > 0 small. We show that if ϵ > 0 is small enough, then there exists a sign-changing stationary solution ϕϵ of (CH) such that the solution of (CH) with initial value v0 = λϕϵ blows up if |λ − 1| > 0 is sufficiently small. This shows, in particular, that the set of the initial conditions for which the solution of (CH) is global and bounded is not star-shaped.
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Y. Naito;T. Senba;内藤 雄基
通讯作者:
内藤 雄基