MEAN CURVATURE OF NON-DEGENERATE SECOND FUNDAMENTAL FORM OF RULED SURFACES

  • KIM, NAM GIL (Department of Mathematics Education, Chosun University) ;
  • YOON, DAE WON (Department of Mathematics Education and RINS, Gyeongsang National University)
  • Received : 2006.10.09
  • Published : 2006.12.31

Abstract

In this paper, we classify non-developable ruled surfaces in a Euclidean 3-spaces satisfying some algebraic equations in terms of the second mean curvature, the mean curvature and the Gaussian curvature.

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