A Note on Inextensible Flows of Curves on Oriented Surface

In this paper, the general formulation for inextensible flows of curves on oriented surface in ${\mathbb{R}}^3$ is investigated. The necessary and sufficient conditions for inextensible curve flow lying an oriented surface are expressed as a partial differential equation involving the geodesic curvature and the geodesic torsion. Moreover, some special cases of inextensible curves on oriented surface are given.