Existence of solutions for semilinear problems with prescribed number of zeros on exterior domains

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• 作者：Joseph A. Iaia ^{iaia@unt.edu" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Exterior domain ; Superlinear ; Radial
• 刊名：Journal of Mathematical Analysis and Applications
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：446
• 期：1
• 页码：591-604
• 全文大小：371 K

文摘

In this paper we prove the existence of an infinite number of radial solutions of Δu+K(r)f(u)=0$\mathrm{\Delta }u+K(r)f(u)=0$ on the exterior of the ball of radius R   centered at the origin in R^N${\mathbb{R}}^N$ such that $\underset{r\to \infty }{\lim }u(r)=0$ with prescribed number of zeros where f:R→R$f:\mathbb{R}\to \mathbb{R}$ is odd and there exists a β>0$\beta >0$ with f<0$f<0$ on (0,β)$(0,\beta )$, f>0$f>0$ on 60e152b9087654428a30e310b9225d" title="Click to view the MathML source">(β,∞)$(\beta ,\infty )$ with f superlinear for large u  , and K(r)∼r^−α$K(r)\sim r^{-\alpha }$ with 0<α<N$0<\alpha <N$.