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35J25 - Boundary value problems for second-order elliptic equations [MSC 2020] |
37C25 - Fixed points and periodic points of dynamical systems; fixed-point index theory, local dynamics [MSC 2020] |
47H10 - Fixed-point theorems [MSC 2020] |
47H11 - Degree theory for nonlinear operators [MSC 2020] |
34C25 - Periodic solutions to ordinary differential equation [MSC 2020] |
46Txx - Nonlinear functional analysis [MSC 2020] |
47J25 - Iterative procedures involving nonlinear operators [MSC 2020] |
34B15 - Nonlinear boundary value problems for ordinary differential equations [MSC 2020] |