Rayleigh-Ritz variation method and connected-moments polynomial approach
Mathematical Physics
2015-05-13 v1 math.MP
Abstract
We show that the connected-moments polynomial approach proposed recently is equivalent to the well known Rayleigh-Ritz variation method in the Krylov space. We compare the latter with one of the original connected-moments methods by means of a numerical test on an anharmonic oscillator
Cite
@article{arxiv.0807.1442,
title = {Rayleigh-Ritz variation method and connected-moments polynomial approach},
author = {Francisco M. Fernandez},
journal= {arXiv preprint arXiv:0807.1442},
year = {2015}
}