Construction of a surface pencil with a common special surface curve

Document Type : Research Paper

Authors

1 Manisa Celal Bayar University, DEPARTMENT OF MATHEMATICS, 45140, MANISA, TURKEY

2 INDEPENDENT RESEARCHER, DELIBEKIRLI VILLAGE, 31440, KIRIKHAN, HATAY, TURKEY

Abstract

In this study, we introduce a new type of surface curves called $D$-type curve. This curve is defined by the property that the unit Darboux vector $\vec{W}_{0} $ of a surface curve $\vec{r}(s)$ and unit surface normal $\vec{n} $ along the curve $\vec{r}(s)$ satisfy the condition $\left\langle \vec{n} ,\vec{W}_{0} \right\rangle =\text{constant}$. We point out that a $D$-type curve is a geodesic curve or an asymptotic curve in some special cases. Then, by using the Frenet vectors and parametric representation of a surface pencil as a linear combination of the Frenet vectors, we investigate necessary and sufficient condition for a curve to be a $D$-type curve on a surface pencil. Moreover, we introduce some corollaries by considering the $D$-type curve as a helix, a Salkowski curve or a planar curve. Finally, we give some examples for the obtained results.

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