Mathematics – Differential Geometry
Scientific paper
2011-08-06
Mathematics
Differential Geometry
24 pages
Scientific paper
We study rays and critical points of Busemann functions in von Mangoldt
planes, which has applications to the structure of open complete manifolds with
lower radial curvature bounds. We compute the set of souls for every von
Mangoldt plane of nonnegative curvature. We show that each cone in the
Euclidean 3-space can be smoothed to a von Mangoldt plane.
Belegradek Igor
Choi Eric
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