GENERAL CORRELATION-FUNCTIONS IN THE SCHWINGER MODEL AT ZERO AND FINITE-TEMPERATURE

The general correlations between massless fermions are calculated in t he Schwinger model at arbitrary temperature. The zero temperature calc ulations on the plane are reviewed and clarified. Then the finite temp erature fermionic Green function is computed and the results on the to rus are compared to those on the plane. It is concluded that a simpler way to calculate the finite temperature results is to associate certa in terms in the zero temperature structure with their finite temperatu re counterparts.