Tomiczek, Petr2021-08-112021-08-112007-05-29Tomiczek, P. (2007). Remark on Duffing equation with Dirichlet boundary condition. <i>Electronic Journal of Differential Equations, 2007</i>(81), pp. 1-3.1072-6691https://hdl.handle.net/10877/14276In this note, we prove the existence of a solution to the semilinear second order ordinary differential equation u″(x) + r(x)u′ + g(x, u) = ƒ(x), x(0) = x(π) = 0, using a variational method and critical point theory.Text3 pages1 file (.pdf)enAttribution 4.0 InternationalSecond order ODEDirichlet problemVariational methodCritical pointArticle