INTERPOLANT POLYNOMIAL TECHNIQUE APPLIED TO THE PPP MODEL .1. ASYMPTOTICS FOR EXCITED-STATES OF CYCLIC POLYENES IN THE FINITE CYCLIC HUBBARD-MODEL

For theoretical reasons, and on account of the development of a new in terpolation technique, it is useful and important to examine the asymp totic behavior of the solution to the one-dimensional Hubbard model. I n this article, it is shown how perturbative expansions for the energy can be developed in the asymptotic region of the relevant coupling fo r all the relevant excited states of cyclic polyene rings. (C) 1996 Jo hn Wiley & Sons, Inc.