On Riemannian manifolds of four dimensions
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- by Shiing-Shen Chern PDF
- Bull. Amer. Math. Soc. 51 (1945), 964-971
References
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1. F. Klein, Vorlesungen über nicht-Euklidischen Geometrie, pp. 238-241.
- E. Study, Beitrage zur Nicht-Euklidischen Geometrie. I. II. III, Amer. J. Math. 29 (1907), no. 2, 101–167 (German). MR 1506008, DOI 10.2307/2370031
Additional Information
- Journal: Bull. Amer. Math. Soc. 51 (1945), 964-971
- DOI: https://doi.org/10.1090/S0002-9904-1945-08483-3
- MathSciNet review: 0013910