A rigidity result for effective Hamiltonians with 3-mode periodic potentials

A rigidity result for effective Hamiltonians with 3-mode periodic potentials
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DOI:
10.1016/j.aim.2018.06.017
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发表时间:
2017-07
影响因子:
1.7
通讯作者:
H. Tran;Yifeng Yu
H. Tran;Yifeng Yu
中科院分区:
数学1区
文献类型:
--
作者:
H. Tran;Yifeng Yu

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本文继续研究文献[14]中提出的Hamilton-Jacobi方程周期均匀化理论中的一个反问题。设V1,V2 ∈ C(Rn)是两个给定的Z n周期势,H <$1,H <$2是与哈密顿量12相联系的有效哈密顿量|p| 2+ V 1,1 2| p| 2+ V2。本文的一个主要结果是,若维数n= 2,且V1,V2中的每一个恰好包含3个互不平行的Fourier模,则H <$1 <$H <$2惠V1(x)= V2(xc + x 0),对所有x∈ T2 = R2/Z2,对某些c∈ Q <${0},x 0∈ T2.当n≥ 3时,场景稍微微妙一些,并且对任何维度都提供了完整的描述。这部分解决了[14]中提出的一个猜想。并讨论了其它一些相关结果和尚待解决的问题。
We continue studying an inverse problem in the theory of periodic homogenization of Hamilton–Jacobi equations proposed in [14]. Let V 1, V 2∈ C (R n) be two given potentials which are Z n-periodic, and H‾ 1, H‾ 2 be the effective Hamiltonians associated with the Hamiltonians 1 2| p| 2+ V 1, 1 2| p| 2+ V 2, respectively. A main result in this paper is that, if the dimension n= 2, and each of V 1, V 2 contains exactly 3 mutually non-parallel Fourier modes, then H‾ 1≡ H‾ 2⇔ V 1 (x)= V 2 (x c+ x 0) for all x∈ T 2= R 2/Z 2, for some c∈ Q∖{0} and x 0∈ T 2. When n≥ 3, the scenario is slightly more subtle, and a complete description is provided for any dimension. These resolve partially a conjecture stated in [14]. Some other related results and open problems are also discussed.