@misc{S._Azimpour_A,
 author={S. Azimpour and M. Chaichi and M. Toomanian},
 address={Երևան},
 howpublished={online},
 publisher={Հայաստանի ԳԱԱ},
 abstract={A 4-dimensional Walker metrics with c = 0 on A semi-Riemannian manifold M have been investigated by E. Garci'a-Ri'o and Y.Matsushita. The case c=constant has been studied in [1]. In this paper we generalize these notions to the case of non-constant c. We find the form of the defining functions that makes this manifold similar to locally conformal flat 4-dimensional Walker manifold.},
 title={A generalization of 4-dimensional locally conformal flat Walker manifolds},
 type={Հոդված},
 keywords={Mathematics, Science},
}