On rotational surfaces with zero mean curvature in the pseudo-Euclidean   space $\mathbb{E}_2^4$
  In this work, we study a class of rotational surfaces in the pseudo-Euclidean space $\mathbb{E}_2^4$ whose profile curves lie in two-dimensional planes. We solve the differential equation that characterizes the rotational surfaces with zero mean curvature to determine the profile curves of such rotational surfaces. Then, we give some explicit parametrization of maximal rotational surfaces and the timelike surfaces with zero mean curvature in $\mathbb{E}_2^4$. 
Burcu Bekta\c{s}, Elif \"Ozkara Canfes and U\u{g}ur Dursun
math.DG