THA-surfaces in 3-dimensional Euclidean space
Bendehiba Senoussi, Abdelaziz Bennour, Khaled Beddani · Asia Pacific Journal of Mathematics · 2021
In this paper, we define THA-surfaces in the 3-dimensional Euclidean space E 3 and completely classify minimal or flat THA-surfaces.We study the THA-surfaces in E 3 under the condition ∆r i = λ i r i , where λ i ∈ R and ∆ denotes the Laplace operator.We obtain the complete classification for those ones.