2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/230911We give sufficient conditions under which the convergence of finite difference approximations in the space variable of possibly degenerate second order parabolic and elliptic equations can be accelerated to any given order of convergence by Richardson's method.30 pagesAnalysis of PDEs65M15; 35J70; 35K65Accelerated finite difference schemes for second order degenerate elliptic and parabolic problems in the whole spacetext