CONVERGENCE OF FINITE-DIFFERENCE SCHEMES FOR CONSERVATION-LAWS IN SEVERAL SPACE DIMENSIONS - THE CORRECTED ANTIDIFFUSIVE FLUX APPROACH

In this paper, we apply the general method we have presented elsewhere and prove the convergence of a class of explicit and high-order accurate finite difference schemes for scalar nonlinear hyperbolic conservation laws in several space dimensions. We consider schemes constructed-from an E-scheme-by the corrected antidiffusive flux approach. We derive "sharp" entropy inequalities satisfied by both E-schemes and the high-order accurate schemes under consideration. These inequalities yield uniform estimates of the discrete space derivatives of the approximate solutions, which are weaker than the so-called BV (i.e., bounded variation) estimates but sufficient to apply our previous theory.