Conformally Flat Pseudo-riemannian Homogeneous Ricci Solitons 4-spaces

M. Chaichi, Y. Keshavarzi
2015 Indian Journal of Science and Technology  
We consider four-dimensional conformally flat homogeneous pseudo-Riemannian manifolds. According to forms (Segre types) of the Ricci operator, we provide a full classification of four-dimensional pseudo-Riemannian conformally flat homogeneous Ricci solitons.
doi:10.17485/ijst/2015/v8i12/71739 fatcat:lbhq3ijcrraqxfkenbxlydzxjq