Open Access

ARTICLE

On Solving the Ill-Conditioned System Ax=b: General-Purpose Conditioners Obtained From the Boundary-Collocation Solution of the Laplace Equation, Using Trefftz Expansions With Multiple Length Scales

Chein-Shan Liu¹, Weichung Yeih², Satya N. Atluri³

1 Department of Civil Engineering, National Taiwan University, Taipei, Taiwan. E-mail:liuchei.nshan@msa.hinet.net
2 Department of Harbor & River Engineering and Computation and Simulation Center, National Taiwan Ocean University, Keelung, Taiwan
3 Center for Aerospace Research & Education, University of California, Irvine