@ARTICLE{Zaeim, author = {Zaeim, A. and Chaichi, M. and Aryanejad, Y. and }, title = {On Lorentzian two-Symmetric Manifolds of Dimension-fou‎r}, volume = {12}, number = {1}, abstract ={‎We study curvature properties of four-dimensional Lorentzian manifolds with two-symmetry property‎. ‎We then consider Einstein-like metrics‎, ‎Ricci solitons and homogeneity over these spaces‎‎. }, URL = {http://ijmsi.ir/article-1-626-en.html}, eprint = {http://ijmsi.ir/article-1-626-en.pdf}, journal = {Iranian Journal of Mathematical Sciences and Informatics}, doi = {DOI: 10.7508/ijmsi.2017.01.007}, year = {2017} }