The Topological Folding of the Hyperbola in Minkowski 3-space
A. E. El-Ahmady · 2011
Our aim in the present article is to introduce and study new types of retractions of hyperbola in Minkowski 3-space. Types of the deformation retracts of hyperbola in Minkowski 3-space are presented. The relations between the retraction and the deformation retract of hyperbola are deduced types of minimal retractions of hyperbola in Minkowski 3-space are also presented. Also, the isometric and topological folding in each case and the relation between the deformation retracts after and before folding have been obtained. New types of homotopy maps are deduced.