Supercloseness of Linear DG-FEM and Its Superconvergence Based on the Polynomial Preserving Recovery for Helmholtz Equation
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DOI: 10.1007/s10915-019-00906-5
Abstract: In this paper we study the supercloseness property of the linear discontinuous Galerkin (DG) finite element method and its superconvergence behavior after post-processing by the polynomial preserving recovery (PPR). The error estimate with explicit dependence… read more here.
Keywords: superconvergence; recovered gradient; polynomial preserving; preserving recovery ... See more keywords