@techreport{419b486c39174175bc21b961d671b856,
title = "Computing the spectrum and representing the resolvent",
keywords = "numerical range, perturbation, polynomial numerical hull, quasialgebraic operator, residue calculus, resolvent operator, semidecidable, spectrum, numerical range, perturbation, polynomial numerical hull, quasialgebraic operator, residue calculus, resolvent operator, semidecidable, spectrum, numerical range, perturbation, polynomial numerical hull, quasialgebraic operator, residue calculus, resolvent operator, semidecidable, spectrum",
author = "Olavi Nevanlinna",
year = "2009",
language = "English",
isbn = "978-951-22-9851-8",
series = "Helsinki University of Technology, Institute of Mathematics, Research Reports",
number = "A568",
pages = "21",
type = "WorkingPaper",
}