Study of a Coupled System with Sub-Strip and Multi-Valued Boundary Conditions via Topological Degree Theory on an Infinite Domain

The existence and uniqueness of solutions for a coupled system Liouville–Caputo type fractional integro-differential equations with multi-point sub-strip boundary conditions are investigated in this study. contain finite number Riemann–Liouville integral non-integral nonlinearities, as well Caputo differential operators various orders subject to on an infinite interval. At the conditions, we use contribution. There techniques solve such one most common is known symmetry analysis. analysis has widely been used problems involving equations, although determining symmetries can be computationally intensive compared other methods. Therefore, employ degree theory due Mawhin measure non-compactness technique arrive at our desired findings. An interesting pertinent problem also provided demonstrate applicability results.