ON ONE HOLE IN 2-DIMENSIONAL HUBBARD-MODE L WITH INFINITE REPULSION

The energy spectrum and wave functions of the two dimensional Hubbard model with infinite repulsion are studied for N x N cluster. The calcu lations are carried out at pre-assigned total quasimomentum values of (a) over right arrow. A set of four non-linear algebraic equations is derived, which describes tl-ie energy levels of the cluster. The analy ses is reduced to the simplest case a(x) = a(y) = alpha, alpha = (0, p i).