On the geometry of the quadratic numerical range for 2 Ã 2 block operator matrices
Li, Rongfang, Wu, Deyu, Chen, AlatancangJournal:
Linear and Multilinear Algebra
DOI:
10.1080/03081087.2020.1759501
Date:
April, 2020
File:
PDF, 1.25 MB
2020