Abstract:
A singular boundary value problem for the model of vacuum diode is studied. Integrability of the system of nonlinear differential equations is justified and a complete system of the first integrals is constructed. A method of solving singular boundary value problem is developed. The generalized model with Laplace's three-dimensional operator is offered. For the generalized model parametrical families of exact solutions are constructed.
Keywords:first integrals, integrability, singular boundary value problem, equations of elliptic type, exact solutions, vacuum diode.