Beiträge zur Algebra und Geometrie Contributions to Algebra and Geometry Vol. 51, No. 2, pp. 577586 (2010) 

Characterizations of special skew ruled surfaces by the normal curvature of some distinguished families of curvesStylianos StamatakisAristotle University of Thessaloniki, Department of Mathematics, GR54124 Thessaloniki, Greece, email: stamata@math.auth.grAbstract: We consider skew ruled surfaces in the threedimensional Euclidean space and some geometrically distinguished families of curves on them whose normal curvature has a concrete form. The aim of this paper is to find and classify all ruled surfaces with the mentioned property. Keywords: ruled surfaces, normal curvature, Edlingersurfaces, right helicoid Classification (MSC2000): 53A25, 53A05 Full text of the article (for subscribers):
Electronic version published on: 24 Jun 2010. This page was last modified: 8 Sep 2010.
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