Forsgren, Anders; Odland, Tove - In: Computational Optimization and Applications 60 (2015) 2, pp. 377-392
It is well known that the conjugate gradient method and a quasi-Newton method, using any well-defined update matrix … update matrix lies in the last two dimensions of the Krylov subspaces defined by the conjugate gradient method and that the … obtained in the conjugate gradient method is derived. In addition, we show that the update matrices from the one …