Abstract

Let H be a Hilbert space. and f(z) is an analytic function in unit disk, |f(z)|<1, then ||f′(A)||≤||I-f.(A)f(A)||1/2||I-F(A)f.(A)||1/21-||A||2where A is a proper contraction operator on H.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.