On null submanifolds of generalized Robertson-Walker space forms

Authors: FORTUNE MASSAMBA, Mohamed H. A. Hamed, SAMUEL SSEKAJJA

Abstract: We investigate totally umbilical $r$-null submanifolds of generalized Robertson-Walker space forms. Using generalized Newton transformations, we obtain new geometric configurations for the mean curvature functions which generalize many well-known results on null geometry.

Keywords: Generalized Robertson-Walker space form, totally umbilical null submanifold

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