2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/20396The chemical potential of the electron gas on a two-dimensional recttangular lattice is determined.An approximate expression for exp(-mu/T) is obtained,and its second order approximation is discussed to some extent.This result will find applications in studies of high temperature superconductors and Q2D organic conductors.7 pages,plain LaTeX,no figuresStrongly Correlated Electronstext