Journal of Mathematical Inequalities · Volume 15, Issue 4 On a reverse of the Tan-Xie inequality for sector matrices and its applications 15-97 Pages 1425-1434 DOI 10.7153/jmi-2021-15-97 Downloads Short PDF Full PDF PNG Authors Leila Nasiri Shigeru Furuichi Keywords sector and accretive matrices the Kantorovich constant numerical range determinant and norm inequality Subject classes 47A63 46L05 47A60 26D15