Rocky Mountain Journal of Mathematics
A new existence theory for a class of second order two-point boundary value problems with nonlinear boundary conditions which can blow up in finite intervals is established. The proofs are based on the dual variational principle and the critical point theory.
Agarwal, R.P., Ma, T.F. On a class of two-point boundary value problems with singular boundary conditions (2006) Rocky Mountain Journal of Mathematics, 36 (6), pp. 1803-1818.