Discretely Compact Embeddings of Spaces of Cell-Centered Grid Functions
Sílvia Barbeiro · Numerical Functional Analysis and Optimization · 2008
Compactness of embeddings in discrete counterparts of Sobolev spaces is considered. We study the embeddings in spaces of cell-centered grid functions, in one- and two-dimensional domains. No restrictions are made on the mesh-ratios of the underlying meshes.