Some General New Einstein Walker Manifolds

Mehdi Nadjafikhah, Mehdi Jafari
2013 Advances in Mathematical Physics  
Lie symmetry group method is applied to find the Lie point symmetry group of a system of partial differential equations that determines general form of four-dimensional Einstein Walker manifold. Also we will construct the optimal system of one-dimensional Lie subalgebras and investigate some of its group invariant solutions.
doi:10.1155/2013/591852 fatcat:2comc6vok5adzlqxphrtr66iu4