Differential equations with moving singularities. (English) Zbl 0344.34048
MSC:
34E15 | Singular perturbations for ordinary differential equations |
34D15 | Singular perturbations of ordinary differential equations |
34A12 | Initial value problems, existence, uniqueness, continuous dependence and continuation of solutions to ordinary differential equations |
34A45 | Theoretical approximation of solutions to ordinary differential equations |