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math.DG2023
The Injectivity Radius of Souls of Alexandrov Spaces
Elena Mäder-Baumdicker, Jona Seidel
A sharp lower bound for the injectivity radius in noncompact nonnegatively curved Riemannian manifolds involving their soul goes back to Šarafutdinov. We generalize this bound to t…
math.DG2017
Singularities of the area preserving curve shortening flow with a Neumann free boundary condition
Elena Mäder-Baumdicker
We consider the area preserving curve shortening flow with Neumann free boundary conditions outside of a convex domain or at a straight line. We give a criterion on initial curves…