Infinite time blow-up for the three dimensional energy critical heat equation in bounded domains

被引:1
|
作者
Ageno, Giacomo [1 ]
del Pino, Manuel [2 ]
机构
[1] Univ Cambridge, Dept Pure Math & Math Stat, Cambridge, England
[2] Univ Bath, Dept Math Sci, Bath BA2 7AY, England
关键词
SEMILINEAR PARABOLIC EQUATION; CRITICAL SOBOLEV EXPONENTS; ELLIPTIC-EQUATIONS; DYNAMICS; EXISTENCE; BEHAVIOR;
D O I
10.1007/s00208-024-02885-x
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We consider the Dirichlet problem for the energy-critical heat equation {u(t )= Delta u + u(5 )in Omega x R+, u = 0 on partial derivative Omega x R+, u(x, 0) = u(0)(x) in Omega, where Omega is a bounded smooth domain in R-3. Let H-gamma(x, y) be the regular part of the Green function of - Delta - gamma in Omega, where gamma is an element of (0, lambda(1)) and lambda(1 )is the first Dirichleteigen value of -Delta. Then, given a point q is an element of Omega such that 3 gamma(q) < lambda(1), where gamma(q) := sup{gamma > 0 : H-gamma(q, q) > 0}, we prove the existence of a non-radial global positive and smooth solution u(x, t) which blows up in infinite time with spike in q. The solution has the asymptotic profile u(x, t) similar to 3(1/4 )(mu(t)/mu(t)(2 )+ |x - xi(t)|(2))(1/2 )as t -> infinity, (0.1) where -ln(mu(t)) = 2 gamma(q)t(1 + o(1)), xi(t) = q + O(mu(t)) as t -> infinity.
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页码:1 / 94
页数:94
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