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arXiv 1604.01465math.AP
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分数阶系统解的对称性

Symmetry of Solutions for a Fractional System

Yan Li, Pei Ma

摘要:

我们考虑下列方程:连续$f, g$的\begin{equation*} \left\{\begin{array}{ll} (-\triangle)^{α/2}u(x)=f(v(x)), \\ (-\triangle)^{β/2}v(x)=g(u(x)), &x \in R^{n},\\ u,v\geq 0, &x \in R^{n}, \end{array} \right. \end{equation*}和$α, β\in (0,2)$。在对$f$和$g$的一些自然假设下,将\emph{method of moving planes}直接应用于该系统,得到了非负解的对称性,而不需要对解在无穷远处的衰减作任何假设.

英文摘要:

We consider the following equations: \begin{equation*} \left\{\begin{array}{ll} (-\triangle)^{α/2}u(x)=f(v(x)), \\ (-\triangle)^{β/2}v(x)=g(u(x)), &x \in R^{n},\\ u,v\geq 0, &x \in R^{n}, \end{array} \right. \end{equation*} for continuous $f, g$ and $α, β\in (0,2)$. Under some natural assumptions on $f$ and $g$, by applying the \emph{method of moving planes} directly to the system, we obtain symmetry on non-negative solutions without any decay assumption on the solutions at infinity.

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