Browsing by Author "Turgay, Nurettin Cenk"
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On Space-Like Class a Surfaces in Robertson-Walker Space Times
Demirci, Burcu Bektaş; Turgay, Nurettin Cenk; Şen, Rüya Yeğin (Cornell University, 2024)In recent years, there has been significant interest among geometers in studying submanifolds of product spaces resulting in numerous findings. Some of them are given by [5], [8], [3], [7], [6]. Apart from Cartesian product ... -
Quasi–Minimal Surfaces of Pseudo–Riemannian Space Forms with Positive Relative Nullity
Demirci, Burcu Bektaş; Turgay, Nurettin Cenk (Elsevier, 2020)In this paper, we consider surfaces in 4–dimensional pseudo–Riemannian space–forms with index 2. First, we obtain some of geometrical properties of such surfaces considering their relative null space. Then, we get ...