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.