This invention relates to computing numerical solutions of linear systems of equations, specifically to implementing preconditioning of the coefficient matrix of such a system. The preconditioning applies to any coefficient matrix, dense or sparse, based on the solutions of a physical problem of unknown...http://www.google.nl/patents/US7418370?utm_source=gb-gplus-sharePatent US7418370 - Method, apparatus and computer program providing broadband preconditioning based on reduced coupling for numerical solvers
Method, apparatus and computer program providing broadband preconditioning ...