Translation Surfaces with Zero Mean Curvature in (2+p)-Dimensional Pseudo-Euclidean Space E2+p2 or E2+pp

Let E2 pp (resp.E2 p2) be a (2 p)-dimensional pseudo-Euclidean space with the index p (resp.2). The maximal spacelike or minimal timelike translation surfaces M2 in E2 pp or E2 p2 are considered and a complete classification is given.