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
中科院分区:
文献类型:
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作者:
H. Tran;Yifeng Yu
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.