2 papers
math.DG2025
Surfaces in a strict Walker 3-manifold that contain non-null curves with zero torsion
El Hadji Baye Camara, Athoumane Niang, Ameth Ndiaye +1
Given a non-null curve in a strict Walker 3-manifold, first we show that (locally) lies in a flat cylinder with a null axis. Secondly, we construct an example of such a c…
math.DG2024
On timelike Bonnet surfaces in Lorentzian 3-manifold
Athoumane Niang, Ameth Ndiaye, Adama Thiandoum
In this paper we generalized a result of Soley Ersoy and Kemal Eren [10] about Bonnet timelike surface in Minkowski 3-space. We give a necessary and sufficient condition for a surf…