The use of preconditioned iterative methods to solve a system of equations with a Toeplitz-plus-Hankel coefficient matrix is studied. A new preconditioner suitable for Toeplitz-plus-Hankel matrices is ...

SIAM Journal on Numerical Analysis, Vol. 25, No. 6 (Dec., 1988), pp. 1213-1236 (24 pages) A domain decomposition method for second-order elliptic problems is considered. An iterative procedure that ...

General aspects of polynomial interpolation theory. Formulations in different basis, e.g. Lagrange, Newton etc. and their approximation and computational properties ...