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J-GLOBAL ID:200901030262546700   Update date: Sep. 22, 2023

Isao Saito

サイトウ イサオ | Isao Saito
Research field  (1): Basic analysis
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
more...
MISC (2):
  • Shizuo Miyajija, Isao Saito. On ∞-hyponormal operators. 北海道大学数学講究録. 2004. 80. 16-20
  • Shizuo Miyajija, Isao Saito. On ∞-hyponormal operators. 北海道大学数学講究録. 2004. 80. 16-20
Lectures and oral presentations  (11):
  • Characterization of closed balls via metric projections, II
    (日本数学会2018年度秋季総合分科会 函数解析分科会 2018)
  • Characterization of closed balls via metric projections
    (日本数学会2018年度年会 関数解析学分科会 2018)
  • Subnormal operator の dual について
    (作用素、作用素環研究集会 1995)
  • Remark on Furuta's extension of the Fuglede-Putnam theorem tosubnormal operators
    (第2回 関数空間セミナー 1994)
  • Remark on Furuta's extension of the Fuglede-Putnam theorem to subnormal operators
    (第2回 関数空間セミナー 1994)
more...
Professional career (1):
  • Doctor of Science (Tokyo University of Science)
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