activity
19952026
most citedOn the classification of gradient Ricci solitons

127 citations · 350 across the 23 of their papers we have counts for

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Showing 2008Show all

2 papers · 1 filter

math.DG2008★ 2 cited

Classification of Almost Quarter-Pinched Manifolds

Peter Petersen, Terence Tao

We show that if a simply connected manifold is almost quarter pinched then it is diffeomorphic to a CROSS (a compact rank one symmetric space) or a sphere.

math.DG2008★ 62 cited

An exotic sphere with positive sectional curvature

Peter Petersen, Frederick Wilhelm

We show that there is a metric on the Gromoll-Meyer sphere with positive sectional curvature.