Determining the spectral properties of the Laplacian on a given Riemannian manifold is a “forward” spectral problem. The corresponding “inverse” problem is to deduce geometric properties from some knowledge of the spectrum. In the case of a surface with hyperbolic ends, the input data could include the resonance set, the scattering phase, perhaps even the scattering matrix for a particular set of frequencies.
CITATION STYLE
Borthwick, D. (2016). Inverse spectral geometry. In Progress in Mathematics (Vol. 318, pp. 297–318). Springer Basel. https://doi.org/10.1007/978-3-319-33877-4_13
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