Db. Fairlie et An. Leznov, GENERAL-SOLUTIONS OF THE MONGE-AMPERE EQUATION IN N-DIMENSIONAL SPACE, Journal of geometry and physics, 16(4), 1995, pp. 385-390
It is shown that the general solution of a homogeneous Monge-Ampere eq
uation in n-dimensional space is closely connected with the exactly (b
ut only implicitly) integrable system partial derivative xi(j)/partial
derivative x(0) + Sigma(k=1)(n-1) xi(k) partial derivative xi(j)/part
ial derivative x(k) = 0 Using the explicit form of solution of this sy
stem it is possible to construct the general solution of the Monge-Amp
bre equation.