Two nonnegative solutions for two-dimensional nonlinear wave equations
Author
Georgiev, Svetlin
Majdoub, Mohamed
Full text
https://revistas.ufro.cl/ojs/index.php/cubo/article/view/320610.56754/0719-0646.2403.0393
Abstract
We study a class of initial value problems for two-dimensional nonlinear wave equations. A new topological approach is applied to prove the existence of at least two nonnegative classical solutions. The arguments are based upon a recent theoretical result.