Complete stationary spacelike surfaces in an n-dimensional Generalized Robertson-Walker spacetime Ferreira, Danilo Romero Sarabia, Alfonso Stationary surfaces Parabolic Riemannian surfaces Generalized Robertson-Walker spacetimes Several uniqueness results for non-compact complete stationary spacelike surfaces in an n(>= 3)-dimensional Generalized Robertson Walker spacetime are obtained. In order to do that, we assume a natural inequality involving the Gauss curvature of the surface, the restrictions of the warping function and the sectional curvature of the fiber to the surface. This inequality gives the parabolicity of the surface. Using this property, a distinguished non-negative superharmonic function on the surface is shown to be constant, which implies that the stationary spacelike surface must be totally geodesic. Moreover, non-trivial examples of stationary spacelike surfaces in the four dimensional Lorentz-Minkowski spacetime are exposed to show that each of our assumptions is needed. 2022-09-30T08:18:04Z 2022-09-30T08:18:04Z 2021-09-07 journal article Published version: Ferreira, D., A. Lima Jr., E. & Romero, A. Complete Stationary Spacelike Surfaces in an n-Dimensional Generalized Robertson–Walker Spacetime. Mediterr. J. Math. 19, 213 (2022). [https://doi.org/10.1007/s00009-022-02145-9] https://hdl.handle.net/10481/77093 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Springer