Research theme for competitive and other funds (2):
作用素論
Operator Theory
Papers (10):
Shizuo Miyajima, Isao Saito. Characterization of closed balls via metric projection. Scientiae mathematicae japonicae. 2023. 85. 2. 75-88
Shizuo MIYAJIMA, Isao SAITO. Rotation-invariance of the spectra of weighted composition operators. Proceedings of the Third International Symposium of Banach and Function Spaces III. 2011. 281-294
Isao Saito. On some operators whose spectra are closed disks centered at the origin. Acta Scientiarum Mathematicarum. 2006. 72. 353-365
Shizuo Miyajima, Isao Saito. On the Aluthge transformations of ∞-hyponormal operators. Scientiae amathematicae japonicae. 2005. 61. 1. 47-55
Shizuo Miyajima, Isao Saito. A remark on the spectra of ∞-hyponormal operators. Acta Sci. Math. 2003. 69. 863-869