A boundary integral equation for Calderón's inverse conductivity problem

Autores: Kari Astala , Lassi Päivärinta
Localización: Collectanea mathematica, ISSN 0010-0757, Vol. 57, Fasc. Extra 1, 2006 (Ejemplar dedicado a: Proceedings of the 7th International Conference on Harmonic Analysis and Partial Differential Equations), págs. 126-139
Idioma: español
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Resumen
- Towards a constructive method to determine an L1-conductivity from the corresponding Dirichlet to Neumann operator, we establish a Fredholm integral equation of the second kind at the boundary of a two dimensional body. We show that this equation depends directly on the measured data and has always a unique solution. This way the geometric optics solutions for the L1-conductivity problem can be determined in a stable manner at the boundary and outside of the body.