We prove that second-order Monge-Ampère equations for one function of two variables
are connected to the wave equation by a Bäcklund transformation if and only if they are
integrable by the method of Darboux at second order.
@article{1240496433,
author = {Clelland, Jeanne N. and Ivey, Thomas A.},
title = {B\"acklund Transformations and Darboux Integrability for Nonlinear Wave Equations},
journal = {Asian J. Math.},
volume = {13},
number = {1},
year = {2009},
pages = { 15-64},
language = {en},
url = {http://dml.mathdoc.fr/item/1240496433}
}
Clelland, Jeanne N.; Ivey, Thomas A. Bäcklund Transformations and Darboux Integrability for Nonlinear Wave Equations. Asian J. Math., Tome 13 (2009) no. 1, pp. 15-64. http://gdmltest.u-ga.fr/item/1240496433/