A General Error Estimate For Parabolic Variational Inequalities

Abstract The gradient discretisation method (GDM) is a generic framework designed recently, as in spatial space, to partial differential equations. This paper aims use the GDM establish first general error estimate for numerical approximations of parabolic obstacle problems. gives convergence rates several well-known conforming and non-conforming methods. Numerical experiments based on hybrid finite volume are provided verify theoretical results.