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Indefinite Affine Umbilical Surfaces in R^4 |
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| Authors: | L Verstraelen L Vrancken P Witowicz |
| Institution: | (1) Dept. Wiskunde, K.U. Leuven, Celestijnenlaan 200B, B-3001 Leuven, Belgium;(2) Fachbereich Mathematik, Technische Universitäat Berlin, Sekr. MA 8-3, Strasse des 17. Juni 136, D-10623 Berlin, Germany;(3) Katedra Matematyki, Politechniki Rzeszowskiej, ul.W.Pola 2, PL-35-959 Rzeszow, Poland |
| Abstract: | We study surfaces M
2 in the four-dimensional affine space
equipped with its usual torsion-free connection D and parallel volume form given by the determinant. |
| Keywords: | equiaffine normal bundle affine mean curvature |
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