Solvability of a Multi-Point Boundary Value Problem at Resonance

C. P. Gupta, Solvability of a three-point boundary value problem for a second order ordinary differential equation, Jour. Math. Anal. Appl., Vol. 168 (1992), pp. 540–551.

C. P. Gupta, A note on a second order three-point boundary value problem, Jour. Math. Anal. Appl., Vol. 186 (1994), pp. 277–281.

C. P. Gupta, S. K. Ntouyas, and P. Ch. Tsamatos, On an m-point boundary value problem for second order ordinary differential equations, Non-Linear Analysis, Theory, Methods and Applications, Vol. 23 (1994) pp. 1427–1436.

G. H. Hardy, J. E. Littlewood, and G. Polya, Inequalities, Cambridge University Press, London/New York, 1967.

S. A. Marano, A remark on a second order three-point boundary value problem, Jour. Math. Anal. Appl., Vol. 183 (1994), pp. 518–522.

J. Mawhin, Landesman-Lazer type problems for nonlinear equations, Conference Sem. Mat. Univ. Bari, 147 (1977)

J. Mawhin, Topological Degree methods in Nonlinear Boundary Value Problems, in “NSF-CBMS Regional Conference Series in Math.” No. 40, Amer. Math. Soc., Providence, RI, 1979

J. Mawhin, Compacité, Monotonie et Convexité dans l’etude de Problèmes aux Limite Semilinéaires, Sem. Anal. Moderne 19 (1981)