A study on tensor product surfaces in low-dimensional Euclidean spaces
We consider a special case for curves in two-, three-, and four-dimensional Euclidean spaces and obtain a necessary and sufficient condition for the tensor product surfaces of the planar unit circle centered at the origin and these curves to have a harmonic Gauss map.
English version (Springer): Ukrainian Mathematical Journal 64 (2012), no. 12, pp 1839-1850.
Citation Example: Etemad Dehkordy A. A study on tensor product surfaces in low-dimensional Euclidean spaces // Ukr. Mat. Zh. - 2012. - 64, № 12. - pp. 1630-1640.