  We study d-wave superconductivity in the extended Hubbard model in the strong
correlation limit for a large intersite Coulomb repulsion V. We argue that in
the Mott-Hubbard regime with two Hubbard subbands there emerges a new energy
scale for the spin-fluctuation coupling of electrons of the order of the
electronic kinetic energy W much larger than the exchange energy J. This
coupling is induced by the kinematic interaction for the Hubbard operators
which results in the kinematic spin-fluctuation pairing mechanism for V < W .
The theory is based on the Mori projection technique in the equation of motion
method for the Green functions in terms of the Hubbard operators. The doping
dependence of superconductivity temperature Tc is calculated for various values
of U and V.
