Willmore defined embedded surfaces on f : S → E3, which is the embedding of S into Euclidean 3-space. He investigated the Euclidean metric of E3, inducing a Riemannian structure on f (S). The expression analogous to the left-hand member of the curvature K is replaced by the mean curvature H2 on f (S). Our aim is to observe the Gaussian and mean curvatures of curve–surface pairs using embedded surfaces in different curve–surface pairs and to define some developable operations on their curve–surface pairs. We also investigate the embedded surfaces using the Willmore method. We first recall the Darboux curve–surface and derive the new characterizations. This curve–surface pair is called the osculating Darboux curve–surface if its position vector always lies in the osculating Darboux plane spanned by a Darboux frame. Thus, we observed an osculating Darboux curve–surface pair. We also obtained the ∼D -scroll of the curve–surface pair and involute ∼D-scroll of the curve–surface pair with some differential geometric elements and found ∼D (α,M)(s) and ∼ D∗ (α,M)(s)-scrolls of the curve–surface pair (α,M).
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