Includes bibliographical references (pages 191-200) and index
CONTENTS NOTE
Text of Note
Generalized argument principle and Rouché's theorem -- Layer potentials -- Eigenvalue perturbations of the Laplacian -- Vibration testing for detecting internal corrosion -- Perturbations of scattering frequencies of resonators with narrow slits and slots -- Eigenvalue perturbations of the lamé system -- Floquet transform, spectra of periodic elliptic operators, and quasi-periodic layer potentials -- Photonic band gaps -- Phononic band gaps -- Optimal design problems