TY - JOUR T1 - Interpolation, Projection and Hierarchical Bases in Discontinuous Galerkin Methods JO - Numerical Mathematics: Theory, Methods and Applications VL - 3 SP - 425 EP - 450 PY - 2015 DA - 2015/08 SN - 8 DO - http://doi.org/10.4208/nmtma.2015.m1305 UR - https://global-sci.org/intro/article_detail/nmtma/12417.html KW - AB -

The paper presents results on piecewise polynomial approximations of tensor product type in Sobolev-Slobodecki spaces by various interpolation and projection techniques, on error estimates for quadrature rules and projection operators based on hierarchical bases, and on inverse inequalities.