TY - EJOU AU - Mai-Duy, N. AU - Tran-Cong, T. TI - A simple and effective preconditioner for integrated-RBF-based Cartesian-grid schemes T2 - The International Conference on Computational \& Experimental Engineering and Sciences PY - 2010 VL - 14 IS - 2 SN - 1933-2815 AB - This paper presents a preconditioning scheme to improve the condition number of integrated radial-basis-function (RBF) matrices in solving large-scale 2D elliptic problems. The problem domain is discretised using a Cartesian grid, over which integrated RBF networks are employed to represent the field variable. The present preconditioner is constructed from 1D integrated RBF networks along grid lines. Test problems defined on rectangular and non-rectangular domains are employed to study the performance of the scheme. KW - preconditioner KW - integrated radial basis functions KW - Cartesian grids DO - 10.3970/icces.2010.014.051