The c-numerical range of tridiagonal matrices

Authors
Chien, MT Nakazato, H
Citation
Mt. Chien et H. Nakazato, The c-numerical range of tridiagonal matrices, LIN ALG APP, 335, 2001, pp. 55-61
Citations number
9
Categorie Soggetti
Mathematics
Journal title
LINEAR ALGEBRA AND ITS APPLICATIONS
ISSN journal
00243795 → ACNP
Volume
335
Year of publication
2001
Pages
55 - 61
Database
ISI
SICI code
0024-3795(20010915)335:<55:TCROTM>2.0.ZU;2-K
Abstract
We give sufficient conditions for the c-numerical range of a tridiagonal ma trix to be an elliptic disc, which generalize known results on the classica l numerical range. (C) 2001 Elsevier Science Inc. All rights reserved.