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- Rathinasamy Sakthivel, Q. H. Choi, Selvaraj Marshal Anthoni
- Appl. Math. Lett.
- 2004

- Tacksun Jung, Q. H. Choi
- 2009

We show the existence of the nontrivial periodic solution for a class of the system of the nonlinear suspension bridge equations with Dirichlet boundary condition and periodic condition by critical point theory and linking arguments. We investigate the geometry of the sublevel sets of the corresponding functional of the system, the topology of the sublevel… (More)

- Q. H. Choi, Tacksun Jung
- 2003

We investigate the existence of solutions of the fourth order nonlinear elliptic boundary value problem under Dirichlet boundary condition A2u + CAU = bu+ + f in 0, where R is a bounded open set in Rn with smooth boundary and the nonlinearity bu+ crosses eigenvalues of A2 + CA. We also investigate a relation between multiplicity of solutions and source… (More)

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