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arXiv 1609.06181math.AP
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索伯列夫空间中非线性分数阶Schr dinger和wave equations的适定性

Well-posedness of nolinear fractional Schrödinger and wave equations in Sobolev spaces

Van Duong Dinh

摘要:

在$\mathbb{R}^d$上证明了纯幂型非线性分数阶薛定谔方程在次临界和临界情形下的适定结果.这些结果推广了以前在\cite{HongSire}中关于$σ\geq 2$的结果。这涵盖了\cite{CazenaveWeissler}中给出的薛定谔方程$σ= 2$的著名结果。在$σ\in (0,2)\backslash \{1\}$情形下,我们给出了所有指数$ν> 1$在次临界情形下的局部适定性,并与\cite{HongSire}情形下的局部适定性作了对比.这也推广了\cite{ChoHwangKwonLee}当$d = 1$和\cite{GuoHuo}当$d \geq 2$时的结果,其中作者考虑了具有$σ\in (1,2)$的三次分数阶薛定谔方程。在一定的假设条件下,我们给出了能量空间中的整体解的存在性。最后证明了纯幂型非线性分数波方程在亚临界和临界情形下的局部适定性。

英文摘要:

We prove the well-posed results in sub-critical and critical cases for the pure power-type nonlinear fractional Schrödinger equations on $\mathbb{R}^d$. These results extend the previous ones in \cite{HongSire} for $σ\geq 2$. This covers the well-known result for the Schrödinger equation $σ= 2$ given in \cite{CazenaveWeissler}. In the case $σ\in (0,2)\backslash \{1\}$, we give the local well-posedness in sub-critical case for all exponent $ν> 1$ in contrast of ones in \cite{HongSire}. This also generalizes the ones of \cite{ChoHwangKwonLee} when $d = 1$ and of \cite{GuoHuo} when $d \geq 2$ where the authors considered the cubic fractional Schrödinger equation with $σ\in (1,2)$. We also give the global existence in energy space under some assumptions. We finally prove the local well-posedness in sub-critical and critical cases for the pure power-type nonlinear fractional wave equations.

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