Inverse Problems for Semilinear Wave Equations on Lorentzian Manifolds
Inverse Problems for Semilinear Wave Equations on Lorentzian Manifolds
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DOI:
10.1007/s00220-018-3135-7
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发表时间:
2016-06
影响因子:
2.4
通讯作者:
M. Lassas;G. Uhlmann;Yiran Wang
中科院分区:
文献类型:
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作者:
M. Lassas;G. Uhlmann;Yiran Wang
We consider inverse problems in space–time (M,g), a 4-dimensional Lorentzian manifold. For semilinear wave equations, wheredenotes the usual Laplace–Beltrami operator, we prove that the source-to-solution map, whereVis a neighborhood of a time-like geodesic, determines the topological, differentiable structure and the conformal class of the metric of the space–time in the maximal set, where waves can propagate fromand return back. Moreover, on a given space–time (M,g), the source-to-solution map determines some coefficients of the Taylor expansion ofHinu.