• Bour's theorem in minkowski 3 space 

      Güler, Erhan; Turgut Vanlı, Aysel (2004)
      In three dimensional Minkowski space, we show that a generalized helicoid with null axis is isometric to a rotation surface with null axis so that helices on the helicoid correspond to parallel circles on the rotation ...
    • Helicoidal hypersurfaces of dini-type in the four dimensional minkowski space 

      Güler, Erhan; Kişi, Ömer (Karaman Üniversitesi, 2018)
      We define Ulisse Dini-type helicoidal hypersurfaces with spacelikeaxis in Minkowski 4-spaceE41. We compute the Gaussian and the mean curva-ture of the hypersurface. Moreover, we obtain some special symmetries to thecurvatures ...