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arXiv 1612.04437math.AP
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二阶导数非线性wave equations反问题

Inverse problems for quadratic derivative nonlinear wave equations

Yiran Wang, Ting Zhou

摘要:

对于Lorentz流形上具有二次导数非线性项的半线性波动方程,研究了背景Lorentz度规的反问题。在非线性项满足一定条件的情况下,我们证明了从源到解的映射,可以确定洛伦兹度规直到同构。

英文摘要:

For semilinear wave equations on Lorentzian manifolds with quadratic derivative non-linear terms, we study the inverse problem of determining the background Lorentzian metric. Under some conditions on the nonlinear term, we show that from the source-to-solution map, one can determine the Lorentzian metric up to diffeomorphisms.

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