R.I. 348

     Time-Harmonic Electromagnetic Fields in Thin Chiral Curved Layers

                 by  H. Ammari and J. C. Nedelec

 In this paper, we prove existence and uniqueness of the solution to
the diffraction problem of a plane electromagnetic field by a chiral curved 
layer covering a perfectly conducting object.
Equivalent boundary conditions are given for thin chiral curved layers 
and optimal error estimates are obtained.

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