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Partial differential equations

Global uniqueness in smooth isotropic elasticity

OpenAI research collection · 1 manuscript · Source checked 2026-10-19

OpenAI's result summary

Proves that full static boundary displacement-to-traction data determine both smooth real Lamé moduli on every bounded connected smooth domain in ℝ^(3), provided μ > 0 and 3\lambda+2\mu> 0 on the closure. Neither analyticity, proximity to constant coefficients nor prior knowledge near the boundary is required.

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MANUSCRIPT 01

Global Uniqueness for the Smooth Isotropic Elasticity Inverse Problem

We prove that the full static displacement-to-traction map uniquely determines both real smooth Lamé moduli on every bounded connected smooth domain in ℝ^(3), provided μ > 0 and 3\lambda+2\mu> 0 on the closure. This resolves the smooth three-dimensional isotropic elastic Calderón uniqueness problem under these positivity…

Full source abstract

We prove that the full static displacement-to-traction map uniquely determines both real smooth Lamé moduli on every bounded connected smooth domain in ℝ^(3), provided μ > 0 and 3\lambda+2\mu> 0 on the closure. This resolves the smooth three-dimensional isotropic elastic Calderón uniqueness problem under these positivity assumptions.

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