M. Khorrami et al., DERIVATION OF QUANTUM THEORIES - SYMMETRIES AND THE EXACT SOLUTION OFTHE DERIVED SYSTEM, International journal of modern physics A, 13(16), 1998, pp. 2833-2840
Based on the technique of derivation of a theory, presented in our rec
ent paper,(l) we investigate the properties of the derived quantum sys
tem. We show that the derived quantum system possesses the (nonanomalo
us) symmetries of the original one, and prove that the exact Green fun
ctions of the derived theory are expressed in terms of the semiclassic
ally approximated Green functions of the original theory.