TY - JOUR T1 - On Lorentzian two-Symmetric Manifolds of Dimension-fou‎r TT - JF - IJMSI JO - IJMSI VL - 12 IS - 1 UR - http://ijmsi.ir/article-1-626-en.html Y1 - 2017 SP - 81 EP - 94 KW - Pseudo-Riemannian metric‎ KW - ‎Einstein-like metrics‎ KW - ‎Ricci soliton‎ KW - ‎Homogeneous spac‎e‎. N2 - ‎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. M3 DOI: 10.7508/ijmsi.2017.01.007 ER -