The Hopf conjecture for manifolds with low cohomogeneity or high symmetry rank
نویسندگان
چکیده
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 2001
ISSN: 0002-9939,1088-6826
DOI: 10.1090/s0002-9939-01-06039-7