On the existence of the essential spectrum for a class of differential expressions having normal maximal extensions

On the existence of the essential spectrum for a class of differential expressions having normal maximal extensions

Bibliografiske detaljer
Hovedforfatter: Castillo, Maritina T.
Format: Thesis
Sprog:English
Udgivet: 1999.
Fag:
Spectral theory (Mathematics).
Differential operators.