Identification of Small Inhomogeneities of Extreme Conductivity by Boundary Measurements: A Continuous Dependence Result.

Abstract

Consider an electrostatic problem for a conductor consisting of finitely many small inhomogeneities of extreme conductivity, embedded in a spatially varying reference medium. Firstly we establish an asymptotic formula for the voltage potential in terms of the reference voltage potential, the location of the inhomogeneities and their geometry. Secondly we use this representation formula to prove a Lipschitz continuous dependence estimate for the corresponding inverse problem. This estimate bounds the difference in the location and in the relative size of two sets of inhomogeneities by the difference in the boundary voltage potentials corresponding to a fixed current distribution.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1987
Accession Number
ADA196675

Entities

People

  • Avner Friedman
  • Michael Vogelius

Organizations

  • University of Minnesota

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical

DTIC Thesaurus Topics

  • Algorithms
  • Boundary Value Problems
  • Computational Science
  • Crystal Structure
  • Differential Equations
  • Direct Current
  • Electric Current
  • Equations
  • Geometry
  • Identification
  • Identities
  • Inverse Problems
  • Measurement
  • Navier Stokes Equations
  • Partial Differential Equations
  • Universities
  • Voltage

Readers

  • Calculus or Mathematical Analysis
  • Plasma Physics / Magnetohydrodynamics