... Boundary Value Problems at ResonanceYunzhu Gao and Minghe PeiDepartment of Mathematics, Beihua University, Jilin City 132013, ChinaCorrespondence should be addressed to Minghe Pei, peiminghe@ynu.ac.krReceived ... resonance. II,” Applied Mathematics andComputation, vol. 136, no. 2-3, pp. 353–377, 2003.9 R. Ma and N. Castaneda, “Existence of solutions of nonlinear m-point boundary-value problems,”Journal ... certain boundary condition case such that the linear operator Lu u n , defined in a suitable Banach space, is invertible, this is the so-called nonresonance case, otherwise, theso-called resonance...