Operators and Matrices · Volume 17, Issue 4 Spectral inclusion property for a class of block operator matrices 17-63 Pages 953-966 DOI 10.7153/oam-2023-17-63 Downloads Short PDF Full PDF PNG Authors Yaru Qi Wenwen Qiu Carsten Trunk Mitsuru Wilson Keywords Block operator matrices numerical range quadratic numerical range spectrum spectral enclosures Subject classes 47A10 35P05 47A12 34G10 47D06 76B99
