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arXiv 1306.0122math.AP
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具有临界Sobolev指数的${\R^3}$中Kirchhoff型问题的集中束缚态

Concentrating Bound States for Kirchhoff type problems in ${\R^3}$ involving critical Sobolev exponents

Yi He, Gongbao LI, Shuangjie Peng

摘要:

研究了具有临界增长\[\left\{\begin{gathered} - \Bigl({\varepsilon ^2}a + \varepsilon b\int_{\R^3} {{{\left| {\nabla u} \right|}^2}} \Bigr)Δu + V(z)u = f(u) + {u^5}{\text{in}}{\R^3}, \hfill u \in {H^1}({\R^3}),{\text{}}u > 0{\text{in}}{\R^3}, \hfill \\ \end{gathered} \right.\]的Kirchhoff型方程弱解的浓度和多重性,其中$\varepsilon $是小的正参数,$a,b > 0$是常数,$f \in {C^1}({\R^ +},\R)$是次临界的,$V:{\R^3} \to \R$是局部Hölder连续函数.我们首先证明了,对于${\varepsilon_0} > 0$足够小,上述问题有一个弱解${u_\varepsilon}$的指数衰减在无穷远。此外,${u_\varepsilon}$集中在$Λ$中的$V$的局部最小点周围,作为$\varepsilon \to 0$。利用极大极小定理和Ljusternik-Schnirelmann理论,利用位势$V\left(z \right)$达到最小值的集合的拓扑结构,得到了该问题的多重解.

英文摘要:

We study the concentration and multiplicity of weak solutions to the Kirchhoff type equation with critical Sobolev growth \[\left\{\begin{gathered} - \Bigl({\varepsilon ^2}a + \varepsilon b\int_{\R^3} {{{\left| {\nabla u} \right|}^2}} \Bigr)Δu + V(z)u = f(u) + {u^5}{\text{in}}{\R^3}, \hfill u \in {H^1}({\R^3}),{\text{}}u > 0{\text{in}}{\R^3}, \hfill \\ \end{gathered} \right.\] where $\varepsilon $ is a small positive parameter and $a,b > 0$ are constants, $f \in {C^1}({\R^ +},\R)$ is subcritical, $V:{\R^3} \to \R$ is a locally Hölder continuous function. We first prove that for ${\varepsilon_0} > 0$ sufficiently small, the above problem has a weak solution ${u_\varepsilon}$ with exponential decay at infinity. Moreover, ${u_\varepsilon}$ concentrates around a local minimum point of $V$ in $Λ$ as $\varepsilon \to 0$. With minimax theorems and Ljusternik-Schnirelmann theory, we also obtain multiple solutions by employing the topology construct of the set where the potential $V\left(z \right)$ attains its minimum.

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