Bøger af Shmuel Agmon

These are the written notes of Fermi's Lectures supported by the Accademia Nazionale dei Lincei and given at the Scuola Normale Superiore of Pisa during March-April 1973. Eigenfunctions which correspond to positive eigenvalues are shown to decay rapidly.

Introduces the theory of higher-order elliptic boundary value problems. This book studies basic problems of the theory, such as the problem of existence and regularity of solutions of higher-order elliptic boundary value problems. It contains a study of spectral properties of operators associated with elliptic boundary value problems.