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Showing 1998 · math.DGShow all
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math.DG1998★ 3 cited
A note on the Gauss map of complete nonorientable minimal surfaces
Francisco J. Lopez, Francisco Martin
We construct complete nonorientable minimal surfaces whose Gauss map omits two points of the projective plane. This result proves that Fujimoto's theorem is sharp in nonorientable…
math.DG1998
Some semi-Riemannian volume comparison theorems
Paul E. Ehrlich, Miguel Sanchez
Lorentzian versions of classical Riemannian volume comparison theorems by Gunther, Bishop and Bishop-Gromov, are stated for suitable natural subsets of general semi-Riemannian mani…