732 citations
- Center for Astrophysics Harvard & SmithsonianUS19 papers
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math.DG2013
On Local Congruence of Immersions in Homogeneous or Nonhomogeneous Spaces
Jeongoo Cheh
We show how to find a complete set of necessary and sufficient conditions that solve the fixed-parameter local congruence problem of immersions in -spaces, whether homogeneous o…
math.DG2006
Ancient Solutions of the Affine Normal Flow
John Loftin, Mao-Pei Tsui
We construct noncompact solutions to the affine normal flow of hypersurfaces, and show that all ancient solutions must be either ellipsoids (shrinking solitons) or paraboloids (tra…