An operator is a product of two quasi-nilpotent operators if and only if it is not semi-Fredholm
Drnovšek, Roman, Novak, Nika, Müller, VladimirVolume:
136
Language:
english
Journal:
Proceedings of the Royal Society of Edinburgh: Section A Mathematics
DOI:
10.1017/S0308210500004819
Date:
October, 2006
File:
PDF, 465 KB
english, 2006