Reduction of the U(∞) supersymmetry theory to a random-matrix model
Mkrtchyan R. L., Khokhlachev S. B.
The limit N —► oo is analyzed for U(N )-invariant supersymmetry theories. It is shown that it is not necessary to freeze the momenta when such theories are reduced to a random-matrix model by the Eguchi-Kawai method. This assertion significantly simplifies numerical calculations in such theories.