The numerical range is a (1 +√2)-spectral set

  1. Crouzeix, M.
  2. Palencia, C.
Journal:
SIAM Journal on Matrix Analysis and Applications

ISSN: 1095-7162 0895-4798

Year of publication: 2017

Volume: 38

Issue: 2

Pages: 649-655

Type: Article

DOI: 10.1137/17M1116672 GOOGLE SCHOLAR