International Journal of Mathematics and Mathematical Sciences
Solutions are obtained of boundary value problems for Lny+f(x,L0y,…,Ln−2y), satisfying L2y(0)=Ln−1y(1)=0, 0≤i≤n−2, where Li, denotes the ith quasiderivative, and where f(x,y1,…,yn−1) has singularities at yi=0, 1≤i≤n−1.
Eloe, Paul W. and Henderson, Johnny, "Singular boundary value problems for quasi-differential equations" (1995). Mathematics Faculty Publications. 112.