Vanegas, Carmen J.2020-01-072020-01-072000-01-08Vanegas, C. J. (2000). Nonlinear perturbations of systems of partial differential equations with constant coefficients. <i>Electronic Journal of Differential Equations, 2000</i>(05), pp. 1-10.1072-6691https://hdl.handle.net/10877/9144In this article, we show the existence of solutions to boundary-value problems, consisting of nonlinear systems of partial differential equations with constant coefficients. For this purpose, we use the right inverse of an associated operator and a fix point argument. As illustrations, we apply this method to Helmholtz equations and to second order systems of elliptic equations.Text10 pages1 file (.pdf)enAttribution 4.0 InternationalRight inverseNonlinear differential equationsFixed point theoremArticle