arXiv 1802.028912018-02math.AP

聚焦$L^2$ -超临界非线性分数阶薛定谔方程的爆破解

On blowup solutions to the focusing $L^2$-supercritical nonlinear fractional Schrödinger equation

Van Duong Dinh

备注：: 27 pages, revised version, to appear Journal Mathematical Physics. arXiv admin note: text overlap with arXiv:1801.08866, arXiv:1801.08049

摘要：

研究了聚焦型$L^2$ -超临界非线性分数阶薛定谔方程\[ i\partial_t u -(-Δ)^s u = -|u|^αu, \quad u(0) = u_0, \quad \text{on } [0,\infty) \times \mathbb{R}^d, \]爆破解的动力学性质，其中$d \geq 2, \frac{d}{2d-1} \leq s <1$，$\frac{4s}{d}<α<\frac{4s}{d-2s}$和$u_0 \in \dot{H}^{s_{\text{c}}} \cap \dot{H}^s$是径向的，临界Sobolev指数为$s_{\text{c}}$ .为此，我们利用$\dot{H}^{s_{\text{c}}} \cap \dot{H}^s$中有界序列的剖面分解，建立了与方程相关的一个紧性引理。得到了具有有界$\dot{H}^{s_{\text{c}}}$-范数的爆破解的$\dot{H}^{s_{\text{c}}}$ -集中度和具有临界$\dot{H}^{s_{\text{c}}}$ -范数的爆破解的极限轮廓.

英文摘要：

We study dynamical properties of blowup solutions to the focusing $L^2$-supercritical nonlinear fractional Schrödinger equation \[ i\partial_t u -(-Δ)^s u = -|u|^αu, \quad u(0) = u_0, \quad \text{on } [0,\infty) \times \mathbb{R}^d, \] where $d \geq 2, \frac{d}{2d-1} \leq s <1$, $\frac{4s}{d}<α<\frac{4s}{d-2s}$ and $u_0 \in \dot{H}^{s_{\text{c}}} \cap \dot{H}^s$ is radial with the critical Sobolev exponent $s_{\text{c}}$. To this end, we establish a compactness lemma related to the equation by means of the profile decomposition for bounded sequences in $\dot{H}^{s_{\text{c}}} \cap \dot{H}^s$. As a result, we obtain the $\dot{H}^{s_{\text{c}}}$-concentration of blowup solutions with bounded $\dot{H}^{s_{\text{c}}}$-norm and the limiting profile of blowup solutions with critical $\dot{H}^{s_{\text{c}}}$-norm.

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摘要：

英文摘要：

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