Abstract
In the present paper, we discuss the geometric properties of two classes of ruled surfaces whose directrix curve is a bi-null curve in semi-Euclidean space \({\mathbb {R}}_{2}^{5}\). We get some classes of flat marginally trapped surfaces in \({\mathbb {R}}_{2}^{5}\).
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The authors express thanks to the referees for their valuable suggestions. The second author would like to thank TUBITAK (The Scientific and Technological Research Council of Turkey) for their financial supports during his PhD studies.
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Sakaki, M., Uçum, A. & İlarslan, K. Ruled surfaces with bi-null curves in \({\mathbb {R}}_{2}^{5}\) . Rend. Circ. Mat. Palermo, II. Ser 66, 485–493 (2017). https://doi.org/10.1007/s12215-016-0287-1
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DOI: https://doi.org/10.1007/s12215-016-0287-1