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

Opis bibliograficzny
1. autor: Castillo, Maritina T.
Format: Praca dyplomowa
Język:English
Wydane: 1999.
Hasła przedmiotowe:
Spectral theory (Mathematics).
Differential operators.