Browse by author
Lookup NU author(s): Dr Michael DritschelORCiD,
Daniel Estevez Sanchez
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
© 2018 Elsevier Inc. We give some new criteria for a Hilbert space operator with spectrum on a smooth curve to be similar to a normal operator, in terms of pointwise and integral estimates of the resolvent. These results generalize criteria of Stampfli, Van Casteren and Naboko, and answers several questions posed by Stampfli in . The main tools are from our recent results  on dilation to the boundary of the spectrum, along with the Dynkin functional calculus for smooth functions, which is based on pseudoanalytic continuation.
Author(s): Dritschel MA, Estevez D, Yakubovich D
Publication type: Article
Publication status: Published
Journal: Journal of Mathematical Analysis and Applications
Print publication date: 01/07/2018
Online publication date: 16/04/2018
Acceptance date: 13/07/2017
ISSN (print): 0022-247X
ISSN (electronic): 1096-0813
Publisher: Academic Press Inc.
Altmetrics provided by Altmetric