Emergent Mind
Analysis of hybridized discontinuous Galerkin methods without elliptic regularity assumptions
(1911.10613)
Published Nov 24, 2019
in
math.NA
and
cs.NA
Abstract
In this paper we present new stability and optimal error analyses of hybridized discontinuous Galerkin (HDG) methods which do not require elliptic regularity assumptions. To obtain error estimates without elliptic regularity assumptions, we use new inf-sup conditions based on stabilized saddle point structures of HDG methods. We show that this approach can be applied to obtain optimal error estimates of HDG methods for the Poisson equations, the convection-reaction-diffusion equations, the Stokes equations, and the Oseen equations.
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