Title:SPIN-FLUCTUATION SUPERCONDUCTIVITY IN THE HUBBARD MODEL
Authors:N.M.Plakida (Joint Institute for Nuclear Research, 141980 Dubna, Russia)

The theory of the superconductivity mediated by kinematic and exchange interactions in t-J and two-band Hubbard models in a paramagnetic state is formulated. The Dyson equations for the matrix Green functions in terms of the Hubbard operators are obtained in the non-crossing approximation. To calculate superconducting T_c a numerical solution of self-consistent Eliashberg equations is proposed.

Key words: superconductivity, strong electron correlations, Hubbard model, t-J model, spin fluctuations
Comments: Figs. 0, Refs. 22, Tabs. 0.