TY - JOUR T1 - A Canonical Construction of $H^m$-Nonconforming Triangular Finite Elements AU - Hu , Jun AU - Zhang , Shangyou JO - Annals of Applied Mathematics VL - 3 SP - 266 EP - 288 PY - 2022 DA - 2022/06 SN - 33 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/aam/20610.html KW - nonconforming finite element, minimum element, high order partial differential equation. AB -

We design a family of 2D $H^m$-nonconforming finite elements using the full $P_{2m−3}$ degree polynomial space, for solving $2m$th elliptic partial differential equations. The consistent error is estimated and the optimal order of convergence is proved. Numerical tests on the new elements for solving tri-harmonic, 4-harmonic, 5-harmonic and 6-harmonic equations are presented, to verify the theory.