| Abstract: | We present the convergence analysis of the rectangular Morley element scheme utilised on the second order problem in arbitrary dimensions. Specifically, we prove that the convergence of the scheme is of O(h) order in energy norm and of O(h2) order in L2 norm on general d-rectangular triangulations. Moreover, when the triangulation is uniform, the convergence rate can be of O(h2) order in energy norm, and the convergence rate in L2 norm is still of O(h2) order, which cannot be improved. Numerical examples are presented to demonstrate our theoretical results. |
