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Stable finite element pair for Stokes problem and discrete Stokes complex on quadrilateral grids (1310.4785v1)
Published 17 Oct 2013 in math.NA
Abstract: In this paper, we first construct a nonconforming finite element pair for the incompressible Stokes problem on quadrilateral grids, and then construct a discrete Stokes complex associated with that finite element pair. The finite element spaces involved consist of piecewise polynomials only, and the divergence-free condition is imposed in a primal formulation. Combined with some existing results, these constructions can be generated onto grids that consist of both triangular and quadrilateral cells.