  The zero temperature d - wave superconductor phase transition theory given in
the case of T=0 for two - dimensional superconductors (I. Herbut, PRL {\bf 85},
1532 (2000)) is generalized for finite temperatures. The Gaussian behavior of
the system is associated with a non - Fermi behavior of the normal state
observed in the resistivity of cuprate superconductors.
