© 2002 by London Mathematical Society
© The London Mathematical Society
Essentially Hankel Operators
Department of Mathematics, Michigan State University East Lansing, MI 48824, USA, ruben{at}math.msu.edu
Received 3 August 2001. Revision received 1 March 2002.
The set of essentially Hankel operators is introduced and some of its properties are investigated. It is shown in particular that the set contains some operators not of the form Hankel plus compact, even when restricted to the class of essentially Hankel operators with trivial (Fredholm) index function.