Optimal quadratic element on rectangular grids for problems

H Zeng, CS Zhang, S Zhang - BIT Numerical Mathematics, 2021 - Springer
In this paper, a piecewise quadratic finite element method on rectangular grids for H^ 1 H 1
problems is presented. The proposed method can be viewed as a reduced rectangular …

A new rotated nonconforming quadrilateral element

Z Meng, J Cui, Z Luo - Journal of Scientific Computing, 2018 - Springer
In this paper, a new nonparametric nonconforming quadrilateral finite element is introduced.
This element takes the four edge mean values as the degrees of the freedom and the finite …

Nonconforming finite element methods on quadrilateral meshes

J Hu, SY Zhang - Science China Mathematics, 2013 - Springer
It is well known that it is comparatively difficult to design nonconforming finite elements on
quadrilateral meshes by using Gauss-Legendre points on each edge of triangulations. One …

[HTML][HTML] New nonconforming finite elements on arbitrary convex quadrilateral meshes

X Zhou, Z Meng, Z Luo - Journal of Computational and Applied …, 2016 - Elsevier
In this paper, we construct new nonconforming finite elements on the meshes consisting of
arbitrary convex quadrilaterals, especially for the quadratic and cubic cases. For each case …

A C0-nonconforming quadrilateral finite element for the fourth-order elliptic singular perturbation problem

Y Bao, Z Meng, Z Luo - ESAIM: Mathematical Modelling and …, 2018 - esaim-m2an.org
In this paper, a C 0 nonconforming quadrilateral element is proposed to solve the fourth-
order elliptic singular perturbation problem. For each convex quadrilateral Q, the shape …

A nonconforming Crouzeix-Raviart type finite element on polygonal meshes

Y Wang - Mathematics of Computation, 2019 - ams.org
A nonconforming lowest order Crouzeix-Raviart type finite element, based on the
generalized barycentric coordinates, is constructed on general polygonal (convex or …

[HTML][HTML] A new family of nonconforming finite elements on quadrilaterals

Y Li - Computers & Mathematics with Applications, 2015 - Elsevier
In this paper, we generalize one first order nonconforming quadrilateral finite element
proposed by Lin, Tobiska and Zhou to any odd order. We construct degrees of freedom for …

Three‐dimensional quadratic nonconforming brick element

Z Meng, D Sheen, Z Luo, S Kim - Numerical Methods for Partial …, 2014 - Wiley Online Library
A new nonconforming brick element with quadratic convergence for the energy norm is
introduced. The nonconforming element consists of on a cube [− 1, 1] 3, and 14 degree of …

A stable nonconforming finite element on hexahedra

Z Meng, Z Luo, X Zhou - International Journal for Numerical …, 2017 - Wiley Online Library
A new nonconforming brick element is introduced, which only has 13 DOFs locally and takes
as its shape functions space. The vector‐valued version generates, together with a …

A new cubic nonconforming finite element on rectangles

Z Meng, Z Luo, D Sheen - Numerical Methods for Partial …, 2015 - Wiley Online Library
A new nonconforming rectangle element with cubic convergence for the energy norm is
introduced. The degrees of freedom (DOFs) are defined by the 12 values at the three Gauss …