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 assumptions.