{ "id": "1611.03930", "version": "v1", "published": "2016-11-12T01:40:40.000Z", "updated": "2016-11-12T01:40:40.000Z", "title": "Uniqueness in the inverse boundary value problem for piecewise homogeneous anisotropic elasticity", "authors": [ "Cătălin I. Cârstea", "Gen Nakamura" ], "categories": [ "math.AP" ], "abstract": "Consider a three dimensional piecewise homogeneous anisotropic elastic medium $\\Omega$ which consists of a finite number of bounded Lipschitz domains $D_\\alpha$, with each $D_\\alpha$ a homogeneous elastic medium. One typical example is a finite element model for an ansiotropic elastic medium. Assuming we know the boundary of each $D_\\alpha$, we are concerned with the uniqueness in the inverse boundary value problem of identifying the anisotropic elasticity tensor on $\\Omega$ from a localized Dirichlet to Neumann map given on a part of the boundary $\\partial D_{\\alpha_0}\\subset\\partial\\Omega$ of $D_{\\alpha_0}$ for a single $\\alpha_0$. If we can connect each $D_\\alpha$ to $D_{\\alpha_0}$ by a chain of $\\{D_{\\alpha_i}\\}_{i=1}^n$ such that interfaces between adjacent regions contain a curved portion, we obtain global uniqueness for this inverse boundary value problem.", "revisions": [ { "version": "v1", "updated": "2016-11-12T01:40:40.000Z" } ], "analyses": { "subjects": [ "35J57", "65M32", "75B05" ], "keywords": [ "inverse boundary value problem", "piecewise homogeneous anisotropic elasticity", "homogeneous anisotropic elastic medium", "uniqueness" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }