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[文献書誌] M.Cho, I.Jeon, I.Jung, J.Lee, K.Tanahashi: "Joint spectra of n-tuples of generalized Aluthge transformations"Revue de Roumanie Math. Pures et Applications. 46. 725-730 (2001)
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[文献書誌] K.Tanahashi: "An example of non-selfadjoint Risez idempotent for hyponormal operator"東北薬科大学一般教育関係論集. 15. 51-61 (2001)
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[文献書誌] K.Tanahashi, A.Uchiyama, M.Uchiyama: "On the Heinz-Kato-Furuta inequality"Proc. Kotac International Conference Operator Theory and Its Applications. 4. 129-134 (2002)
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[文献書誌] M.cho, K.Tanahashi: "Isolated point of spectrum of p-hyponormal, log-hyponormal operators"Integral Equations and Operator Theory. 43. 379-384 (2002)
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[文献書誌] K.Tanahashi, A.Uchiyama, M.Uchiyama: "Notes on the Heinz-Kato-Furuta-Uchiyama inequality"京都大学数理解析研究所講究録. 1259. 79-86 (2002)
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[文献書誌] M.Miura: "Remarks on selfdual cones"京都大学数理解析研究所講究録. 1259. 150-164 (2002)
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[文献書誌] H.takemoto, A.Uchiyama: "A remark on the numerical ranges of operators on Hilbert spaces"Nihonkai Mathematical Journal. 13. 1-7 (2002)
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[文献書誌] A.Uchiyama, K.Tanahashi: "On the Risez idempotent of class A operators"Mathematical Inequalities and Applications. 5. 291-298 (2002)
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[文献書誌] A.Uchiyama, K.Tanahashi: "Fuglede-Putnam's theorem for p-hyponormal or log-hyponormal operators"Glasgow Mathematical Journal. 44. 397-410 (2002)
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[文献書誌] K.Tanahashi: "Tensor product of log-hyponormal operators"北海道大学数学講究録. 73. 32-35 (2003)
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[文献書誌] M.Miura: "On order of operators preserving selfdual cones in standard forms"Far East J. Math. Sci. (FJMS). (to appear).
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[文献書誌] K.Tanahashi, M.Uchiyama: "On Schwarz type inequalities"Proceedings of American Mathematical Society. (to appear).
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[文献書誌] K.Tanahashi: "Putnam's inequality for log-hyponormal operators"Integral Equations and Operator Theory. (to appear).