2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185637Using the correlation function of chiral vertex operators of the Coulomb gas model, we find the Laughlin wavefunctions of quantum Hall effect, with filling factor $ν=1/m$, on Riemann sufaces with Poincare metric. The same is done for quasihole wavefunctions. We also discuss their plasma analogy.10 pages, LaTex, the paper is completely rewritten, It will be appeared in : Jour. Phys. A 32 (1999)High Energy Physics - Theorytext