Opuscula Mathematica > 2017 > Vol. 37, no. 1 > 81--107
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journal ISSN : | 1232-9274 |
journal e-ISSN : | 2300−6919 |
DOI | 10.7494/OpMath.2017.37.1.81 |
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Bibliography
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[1] A. Athavale, On joint hyponormal operators, Proc. Amer. Math. Soc. 103 (1988), 417-423.
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[3] S. Bochner, Curvature and Betti numbers. I, II, Ann. of Math. 49, 50 (1948, 1949), 379-390, 79-93.
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[4] S. Bochner, K. Yano, Curvature and Betti Numbers, Ann. of Math. Studies 32, Princeton University Press, Princeton, 1953.