机译:Three-dimensional Haar wavelet method for singularly perturbed elliptic boundary value problems on non-uniform meshes
Birla Inst Technol & Sci;
Univ Salamanca;
Singularly perturbed problems; Elliptic partial differential equations; Haar wavelet method; Non-uniform mesh; Shishkin mesh; Convergence analysis; FINITE-ELEMENT METHODS; ALTERNATING DIRECTION SCHEME; UNIFORM-CONVERGENCE; DIFFERENCE-SCHEMES; APPROXIMATIONS;