Numerical Algorithms

Duality in conjugate gradient methods

C.G. Broyden, P. Foschi

Parallel two-level Schwarz methods for singularly perturbed elliptic problems

V. Sirotkin, P. Tarvainen

Accelerating infinite products

Alan M. Cohen, David Levin

Generalization of differential quadrature discretization

Chang-New Chen

Stable rational modification of a weight

Pierre Verlinden

Some results about GMRES in the singular case

L. Smoch

Normal forms for differentiable maps near a fixed point

Guoting Chen, Jean Della Dora

Book reviews