PageHeader : Funkcialaj Ekvacioj, 38 (1995) 159-177
Title : On Weakly Hyperbolic Equations in Hilbert Spaces
AuthorInfo : By
AuthorInfo : Piero D'ANCONA
AuthorInfo : (Universita di Pisa, Italy)
section : 1. Introduction
section : 2. Energy estimates
section : 3. Proof of the theorems
section : 4. A lemma on partial differential operators
section : 5. Applications
section : Appendix
section : References