NDLI: A Simultaneous Lifting Theorem for Block Diagonal Operators

Content Provider	Scilit
Author	Allen, G. D. Ward, J. D.
Copyright Year	1979
Description	Stampfli has shown that for a given there exists a so that . An analogous result holds for the essential numerical range . A compact operator K is said to preserve the Weyl spectrum and essential numerical range of an operator if and .
Related Links	https://www.ams.org/tran/1979-250-00/S0002-9947-1979-0530063-8/S0002-9947-1979-0530063-8.pdf
Ending Page	397
Page Count	13
Starting Page	385
ISSN	00029947
e-ISSN	10886850
DOI	10.2307/1998998
Journal	Transactions of the American Mathematical Society
Volume Number	250
Language	English
Publisher	Duke University Press
Publisher Date	1979-06-01
Access Restriction	Open
Subject Keyword	Mathematical Physics Block Diagonal Operator Operator K Compact Operator Perturbation Weyl
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A Simultaneous Lifting Theorem for Block Diagonal Operators