@article{article_408031, title={ON DIFFERENTIAL GEOMETRY OF THE LORENTZ SURFACES}, journal={Journal of Science and Technology of Dumlupınar University}, pages={20–24}, year={2007}, author={Ekmekci, Nejat and Tuncer, Yılmaz}, keywords={Lorenz Surface,Fundamental Forms,Curvatures,Weingarten Formulae}, abstract={<p> <span style="font-size: 12.6px;">In this paper we have defined the sign functions £1’ £2’ t3’ £4’ t5 and the vector fields  </span> <span style="font-size: 0.9em;">Xu’ Xv’ nu and n , which have taken derivatives with (u,v) parameters of the tangent  </span> <span style="font-size: 0.9em;">vector field X of any surface in Lorentz space and we get fundamental forms, Weingarten  </span> <span style="font-size: 0.9em;">equations, Olin-Rodrigues and Gauss formulae. Beside these we calculate Gauss and mean  </span> <span style="font-size: 0.9em;">curvatures. </span> <br> </p>}, number={013}, publisher={Kütahya Dumlupınar Üniversitesi}