On the uniqueness of the second bound state solution of a semilinear equation

被引:13
作者
Cortazar, Carmen [2 ]
Garcia-Huidobro, Marta [2 ]
Yarur, Cecilia S. [1 ]
机构
[1] Univ Santiago Chile, Dept Matemat & CC, Santiago, Chile
[2] Pontificia Univ Catolica Chile, Dept Matemat, Santiago, Chile
来源
ANNALES DE L INSTITUT HENRI POINCARE-ANALYSE NON LINEAIRE | 2009年 / 26卷 / 06期
关键词
Bound state; Uniqueness; Separation lemmas; LINEAR ELLIPTIC-EQUATIONS; POSITIVE RADIAL SOLUTIONS; GROUND-STATE; NONNEGATIVE SOLUTIONS; DELTA-U+F(U)=0; RN; EXISTENCE; LAPLACIAN; R(N);
D O I
10.1016/j.anihpc.2009.01.004
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We establish the uniqueness of the second radial bound state solution of Delta u + f (u) = 0, x is an element of R-n. We assume that the nonlinearity f is an element of C(-infinity, infinity) is an odd function satisfying some convexity and growth conditions of superlinear type, and either has one zero at b > 0, is nonpositive and not identically 0 in (0, b), and is differentiable and positive [b, infinity), or is positive and differentiable in [0, infinity). (C) 2009 Elsevier Masson SAS. All rights reserved.
引用
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页码:2091 / 2110
页数:20
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