Accuracy 4 Accuracy; approximation by translates; dilation equations; dilation matrix; multidimensional refinable functions; multidimensional wavelets; multiwavelets; refinement equations; refinable functions; shift invariant spaces; wavelets 4 Dilation equation 4 Dilation matrix 4 Multidimensional wavelets 4 Multiwavelets 4 Refinable distributions 4 Refinable functions 4 Refinement equation 4 Shift invariant spaces 4 Wavelets 4 ACCURACY 3 ESPACIOS DE MUESTREO 3 ESPACIOS INVARIANTES POR TRASLACIONES 3 FRAMES 3 FUNCIONES HOMOGENEAS 3 FUNCIONES REFINABLES 3 GRADO DE PRECISION 3 HOMOGENEOUS FUNCTIONS 3 MARCOS 3 REFINABLE FUNCTIONS 3 SAMPLING SPACES 3 SHIFT INVARIANT SPACES 3