Higher Order Variational Principles and Iterative Processes
Jacques Devooght · Nuclear Science and Engineering · 1970
N-step iterative processes give rise to N-order variational principles. The p-hyperpower iterative process of Altman and Petryshyn is shown to be equivalent to the p-order variational principle of Kostin and Brooks. A higher order Chebychev variational principle is derived, which is independent of the normalization of the trial operator.