Low-temperature properties of an almost-localized Fermi liquid

We calculate the low-temperature corrections to the properties of an almost-localized Fermi liquid in the normal phase caused by the temperature-dependent renormalization of the quasiparticle bandwidth. Our approach provides a natural extension to finite temperatures of the theory of correlated electron systems devised by Brinkman and Rice. Applications to (${\mathrm{V}}_{1\mathrm{-}\mathrm{x}}$ ${\mathrm{Ti}}_{\mathrm{x}}$ ${)}_2$ ${\mathrm{O}}_3$, heavy fermions, and liquid ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ are briefly discussed. The importance of intersite correlations is stressed and discussed in physical terms.