Journal of the Korean Mathematical Society
Sufficient conditions for the existence of positive solutions for a coupled system of nonlinear nonlocal boundary value problems of the type (see PDF for details) are obtained. The nonlinearities (see PDF) are continuous and may be singular at t = 0, t = 1, x = 0, or y = 0. … An example is provided to illustrate the results.
Asif, Naseer Ahmad; Eloe, Paul W.; and Khan, Rahmat Ali, "Positive solutions for a system of singular second order nonlocal boundary value problems" (2010). Mathematics Faculty Publications. 115.