TWO-LOGARITHM MATRIX MODEL WITH AN EXTERNAL FIELD
Leonid Olegovich Chekhov, K. PALAMARCHUK · Modern Physics Letters A · 1999
We investigate the two-logarithm matrix model with the potential XΛ+α log (1+X)+β log (1-X) related to an exactly solvable Kazakov–Migdal model. In the proper normalization, using Virasoro constraints, we prove the equivalence of this model and the Kontsevich–Penner matrix model and construct the 1/N-expansion solution of this model.