Operators and Matrices · Volume 15, Issue 3 Approximation of the numerical range of polynomial operator matrices 15-67 Pages 1073-1087 DOI 10.7153/oam-2021-15-67 Downloads Short PDF Full PDF PNG Authors Maria Adam Aikaterini Aretaki Ahmed Muhammad Keywords polynomial operator q-numerical range projection method Hain-Lüst operator Stokes operator Subject classes 47A58 47A20 47A12 15A60
