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Abstract: We prove that any rational linear combination of Pontryagin numbers that isnot a multiple of the signature is unbounded on connected closed orientedmanifolds of nonnegative sectional curvature. Combining our result withGromov-s finiteness result for the signature yields a new characterization ofthe L-genus.



Autor: D. Kotschick

Fuente: https://arxiv.org/







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