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arXiv 1206.3971math.AP
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Lane Emden问题:低能节点解的渐近性态

Lane Emden problems: asymptotic behavior of low energy nodal solutions

Massimo Grossi, Christopher Grumiau, Filomena Pacella

摘要:

研究了Lane Emden Dirichlet问题$-Δu = |u|^{p-1}u with DBC on a smooth bounded domain $ Ω $ in $ \IR^2 $ and where $ p>1 $. We consider solutions $ u_p $ satisfying $ p \int_Ω \abs{\nabla u_p}^2 \to 16πe \quad \hbox{as} p \rightarrow + \infty \qquad(*)$ and we are interested in the shape and the asymptotic behavior as $ p \rightarrow + \infty $. First we prove that (*) holds for least energy nodal solutions. Then we obtain some estimates and the asymptotic profile of this kind of solutions. Finally, in some cases, we prove that $ pu_p $ can be characterized as the difference of two Green's functions and the nodal line intersects the boundary of $ $, for large $ p$的节点解.

英文摘要:

We study the nodal solutions of the Lane Emden Dirichlet problem $-Δu = |u|^{p-1}u with DBC on a smooth bounded domain $Ω$ in $\IR^2$ and where $p>1$. We consider solutions $u_p$ satisfying $p \int_Ω\abs{\nabla u_p}^2\to 16πe\quad\hbox{as}p\rightarrow+\infty\qquad (*)$ and we are interested in the shape and the asymptotic behavior as $p\rightarrow+\infty$. First we prove that (*) holds for least energy nodal solutions. Then we obtain some estimates and the asymptotic profile of this kind of solutions. Finally, in some cases, we prove that $pu_p$ can be characterized as the difference of two Green's functions and the nodal line intersects the boundary of $Ω$, for large $p$.

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