arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1402.1193math.APmath.DG
收藏

分数阶椭圆型方程组的对称性结果及相关问题

Symmetry results for fractional elliptic systems and related problems

Mostafa Fazly, Yannick Sire

摘要:

研究了全空间$$ (- Δ)^\mathbf s \mathbf u =\nabla H (\mathbf u) \ \ \text{in}\ \ \mathbf{R}^n,$$上具有分数拉普拉斯算子的椭圆梯度方程组,其中$\mathbf u:\mathbf{R}^n\to \mathbf{R}^m$,$H\in C^{2,γ}(\mathbf{R}^m)$对$γ> \max(0,1-2\min \left \{s_i \right \})$,$\mathbf s=(s_1,\cdots,s_m)$对$0<s_i<1$和$\nabla H (\mathbf u)=(H_{u_i}(u_1, u_2,\cdots,u_m))_{i}$ .我们证明了De Giorgi型结果,该系统的某些值的$\mathbf s$和在较低的维度,即$n=2,3$。与局部情形一样,文[18]中建立的可定向系统和$H-$单调解的概念在证明对称性结果中起着关键作用。此外,我们提供了最佳的能量估计,单调性公式,哈密顿恒等式和各种刘维尔定理。

英文摘要:

We study elliptic gradient systems with fractional laplacian operators on the whole space $$ (- Δ)^\mathbf s \mathbf u =\nabla H (\mathbf u) \ \ \text{in}\ \ \mathbf{R}^n,$$ where $\mathbf u:\mathbf{R}^n\to \mathbf{R}^m$, $H\in C^{2,γ}(\mathbf{R}^m)$ for $γ> \max(0,1-2\min \left \{s_i \right \})$, $\mathbf s=(s_1,\cdots,s_m)$ for $0<s_i<1$ and $\nabla H (\mathbf u)=(H_{u_i}(u_1, u_2,\cdots,u_m))_{i}$. We prove De Giorgi type results for this system for certain values of $\mathbf s$ and in lower dimensions, i.e. $n=2,3$. Just like the local case, the concepts of orientable systems and $H-$monotone solutions, established in [18], play the key role in proving symmetry results. In addition, we provide optimal energy estimates, a monotonicity formula, a Hamiltonian identity and various Liouville theorems.

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。

↑