Frederick Wilhelm

activity

19952020

most citedAn exotic sphere with positive sectional curvature

62 citations · 133 across the 19 of their papers we have counts for

collaborators

Showing 2012Show all

2 papers · 1 filter

math.DG2012

Riemannian Submersions Need Not Preserve Positive Ricci Curvature

Curtis Pro, Frederick Wilhelm

If $π : M \to B$ is a Riemannian Submersion and $M$ has positive sectional curvature, O'Neill's Horizontal Curvature Equation shows that $B$ must also have positive curvature.…

math.DG2012

The Diffeomorphism Type of Manifolds with Almost Maximal Volume

Curtis Pro, Michael Sill, Frederick Wilhelm

The smallest $r$ so that a metric $r$ -ball covers a metric space $M$ is called the radius of $M$ . The volume of a metric $r$ -ball in the space form of constant curvature $k$ is an…