... 0,2.13 for all δkj≤ αj, |αj| m and 1 ≤ i ≤ Nm, where δkj {0, ,1kj, ,0}. Boundary Value Problems 32. Formulation of the Boundary Value Problem For second-order equations ... Keldys-Fichera boundary- value problem for degeneratequasilinear elliptic equations, ” Electronic Journal of Differential Equations, no. 87, pp. 1–13, 2002.6 S. H. Li, “The first boundary value problem for ... the discussion of well-posed boundary value problem has not been seen. Here we will give a kind of boundary value condition, which is consistent with Dirichlet problem if the equations areelliptic,...