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arXiv · 1001.4729

On the uniqueness of sign changing bound state solutions of a semilinear equation

Carmen Cortazar·Marta Garcia-Huidobro·Cecilia Yarur
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Abstract

We establish the uniqueness of the higher radial bound state solutions of $$ \Delta u +f(u)=0,\quad x\in \RR^n. \leqno(P) $$ We assume that the nonlinearity $f\in C(-\infty,\infty)$ is an odd function satisfying some convexity and growth conditions, and either has one zero at $b>0$, is non positive and not identically 0 in $(0,b)$, and is differentiable and positive $[b,\infty)$, or is positive and differentiable in $[0,\infty)$.

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Carmen Cortazar, Marta Garcia-Huidobro, Cecilia Yarur. 2010-01-26. On the uniqueness of sign changing bound state solutions of a semilinear equation. https://doi.org/10.1016/j.anihpc.2011.04.002

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