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Abstract
We describe some special surfaces in pseudo-Galilean spaces such as helical surfaces, ruled screw surfaces, surfaces of revolution and in particular tori of revolution. We define special surfaces and find their main properties.
Abstract
We develop the theory of ruled surfaces in the pseudo-Galilean space G 3 1. Furthermore, we prove the Bonnet theorem and investigate the osculating quadrics for ruled surfaces in G 3 1as well as in the Galilean space G 3.
Curves and Singularities 2 Cambridge Univ. Press . [5] Divjak , B. , Milin Šipuš , Ž. 2008 Some special surfaces in the pseudo-Galilean space Acta Math. Hungar. 118 209 – 226 10.1007/s