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A General Error Estimate For Parabolic Variational Inequalities (2009.09607v1)
Published 21 Sep 2020 in math.NA and cs.NA
Abstract: The gradient discretisation method (GDM) is a generic framework designed recently, as a discretise in spatial space, to partial differential equations. This paper aims to use the GDM to establish a first general error estimate for numerical approximations of parabolic obstacle problems. This gives the convergence rates of several well--known conforming and non conforming numerical methods. Numerical experiments based on the hybrid finite volume method are provided to verify the theoretical results.