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19982008
most citedConvexity and singularities of curvature equations in conformal geometry

2 citations · 3 across the 4 of their papers we have counts for

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math.DG2003

A conformally invariant sphere theorem in four dimensions

S. Y. A Chang, Matthew J. Gursky, Paul Yang

In this paper we provide a sharp characterization of the smooth four-dimensional sphere. The assumptions of the theorem are conformally invariant, and can be reduced to an L^2 ineq…