Year: 2026
Type: preprint
Abstract: We consider the elastic wave equation in three-dimensional isotropic medium with up to quadratic nonlinear terms. We show that five out of the six elastic parameters can be uniquely determined by boundary measurements under the assumption that the wavespeeds are non-trapping, while the last one can also be determined in a generic setting.
Source: arXiv (Cornell University)
Authors: Uhlmann, Gunther, Zhai, Jian
Institution: Fudan University
Language: English
Subfield: Mathematical Physics
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
Awards: G2641015886, G7742448768
OpenAlex ID: W7213601847