Abstract
In this paper we give two elementary proofs for the rigidity of the complex projective space ℙ3 with respect to global deformations.
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Peternell, T. Singular surfaces and the rigidity of ℙ3 . Manuscripta Math 63, 69–82 (1989). https://doi.org/10.1007/BF01173702
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DOI: https://doi.org/10.1007/BF01173702