arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1710.09293math.APmath.DG
收藏

7维1-共旋能超临界调和映射热流的稳定型II爆破

Stable type II blowup for the 7 dimensional 1-corotational energy supercritical harmonic map heat flow

Tej-eddine Ghoul

摘要:

在1-共转对称性的附加假设下,我们考虑了从$\mathbb{R}^d$到$\mathbb{S}^d$的能量-超临界调和映射热流。我们感兴趣的是7维的情况下,这是之间的边界I型爆破制度。对于这个问题,我们构造了一个稳定的有限时间爆破解决方案的条件下的共旋对称,通过浓度的普遍配置文件$$u(r,t) \sim Q\left(\frac{r}{λ(t)}\right),$$,其中$Q$是固定的解决方案的方程和速度是由速率$$λ(t) \sim \frac{\sqrt{(T-t)}}{|\log(T-t)|},$$,这对应于Biernat预测的速度。

英文摘要:

We consider the energy-supercritical harmonic map heat flow from $\mathbb{R}^d$ into $\mathbb{S}^d$, under an additional assumption of 1-corotational symmetry. We are interested by the 7 dimensional case which is the borderline between the Type I blowup regime. We construct for this problem a stable finite time blowup solution under the condition of corotational symmetry that blows up via concentration of the universal profile $$u(r,t) \sim Q\left(\frac{r}{λ(t)}\right),$$ where $Q$ is the stationary solution of the equation and the speed is given by the rate $$λ(t) \sim \frac{\sqrt{(T-t)}}{|\log(T-t)|},$$ which corresponds to the speed predicted by Biernat.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑