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Dedicated to Professor S. Sasaki on his 60th birthday
The work was done under the program “Sonderforschungsbereich Theoretische Mathematik” at Bonn University and supported by Alexander von Humboldt-Stiftung.
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Shiohama, K. Riemannian manifolds diffeomorphic to the complex projective space. Math. Ann. 205, 55–88 (1973). https://doi.org/10.1007/BF01432514
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DOI: https://doi.org/10.1007/BF01432514