The phase retrieval problem for solutions of the Helmholtz equation
The phase retrieval problem for solutions of the Helmholtz equation
复制标题
亥姆霍兹方程解的相位恢复问题
DOI:
10.1088/1361-6420/aa8640
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发表时间:
2017
期刊:
影响因子:
2.1
通讯作者:
S. P'erez
中科院分区:
文献类型:
--
作者:
Philippe Jaming;S. P'erez
In this paper we consider the phase retrieval problem for solutions of the Helmholtz equation Δu+λ2u=0 on domains Ω⊂Rd, d⩾2. In dimension d=2, if u,v are two such solutions then |u|=|v| implies that either u=cv or u=cv¯ for some c∈C with |c|=1. In dimension d⩾3, the same conclusion holds under some restriction on u and v: either they are real valued or zonal functions or have a non vanishing mean.