中国科学院数学与系统科学研究院期刊网
Quadratic Numerical Radius Inequalities of Off-diagonal 2×2 Block Operator Matrices
Sarina, De Yu WU, Alatancang
Acta Mathematica Sinica, Chinese Series . 2022, (1): 147 -152 .  DOI: 10.12386/A2022sxxb0011