  We investigate adiabatic pumping through a quantum dot with a single level in
the mixed-valence and Kondo regimes using the slave-boson mean field
approximation. The pumped current is driven by a gauge potential due to
time-dependent tunneling barriers as well as by the modulation of the Friedel
phase. The sign of the former contribution depends on the strength of the
Coulomb interaction. Under finite magnetic fields, the separation of the spin
and charge currents peculiar to the Kondo effect occurs.
