On spectrally correct approximations for Maxwell and Schrödinger operators

Monique Dauge

Slides of two lectures given on invitation at the EPSRC Gregynog Workshop “Computation and Analytic Problems in Spectral Theory” (Gregynog, Wales, UK)

How one can compute wrong eigenvalues and believe they are correct... and how to remedy (13 July 2008).

Pdf file (3.2 Mo)

Two methods for spectrally correct approximation of Maxwell cavity eigenfrequencies: Weighted Regularization and Discrete Commuting Diagrams (15 July 2008).   Including references.

Pdf file (464 Ko)