In particular, we use generalized Green's function to prove that the high-order nonhomogeneous boundaryvalueproblem has a solution when the associated homogeneous problem has a nontrivial solution.
Through the change of variables, the original problem with inhomogeneous boundary condition is reduced to the boundaryvalueproblem of homogeneousboundary condition.
并通过变量代换，将原问题的非齐次边界条件转化为齐次边界条件的边值问题。
3
The convergence of the formal series solution to the initial boundaryvalueproblem for the non-homogeneous wave equation is considered.