2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/26984The various proposals for FQHE quasi-electron trial wave functions are reconsidered. In a short-range model for the electronic interaction, the energy expectation values of four different trial wave functions are calculated at filling factor $\frac{1}{3}$ for up to ten electrons in the disk geometry. Jain's trial wave function displays the lowest energy expectation value.9 pages, 1 figure, LATEX-fileCondensed Mattertext