Abstract
We show that any ancient solution to the Ricci flow which satisfies a suitable curvature pinching condition must have constant sectional curvature.
Citation
Simon Brendle. Gerhard Huisken. Carlo Sinestrari. "Ancient solutions to the Ricci flow with pinched curvature." Duke Math. J. 158 (3) 537 - 551, 15 June 2011. https://doi.org/10.1215/00127094-1345672
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