Compositeness Condition for Dynamically Induced Gauge Theories
  We show that the compositeness condition for the induced gauge boson in the four-fermion interaction theory actually works beyond the one-loop approximation. The next-to-leading contributions are calculated, and turn out to be reasonably suppressed, so that the leading-order approximation is justified. 
Keiichi Akama (Saitama Medical College) and Takashi Hattori (Kanagawa   Dental College)