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Some aspects of normal curve on smooth surface under isometry

Singh Kuljeet, Sharma Sandeep, Bhardwaj Arun Kumar

Demonstratio Mathematica

2024

Vol. 57, nr 1

art. no. 20240017

The normal curve is a space curve that plays an important role in the field of differential geometry. This research focuses on analyzing the properties of normal curves on smooth immersed surfaces, considering their invariance under isometric transformations. The primary contribution of this article is to explore the requirements for the image of a normal curve that preserves its invariance under isometric transformations. In this article, we investigate the invariant condition for the component of the position vector of the normal curves under isometry and compute the expression for the normal and geodesic curvature of such curves. Moreover, it has been investigated that the geodesic curvature and Christoffel symbols remain unchanged under the isometry of surfaces in R3.