Almost-rigidity and the Extinction Time of Positively Curved Ricci Flows
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چکیده
We prove that Ricci flows with almost maximal extinction time must be nearly round, provided that they have positive isotropic curvature when crossed with R. As an application, we show that positively curved metrics on S and RP 3 with almost maximal width must be nearly round.
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تاریخ انتشار 2015