  For various one-dimensional quantum liquids in the framework of the Luttinger
model (bosonization) we establish the relations between the coefficients before
the power-law asymptotics of the correlators (prefactors) and the formfactors
of the corresponding local operators. The derivation of these relations in the
framework of the bosonization procedure allows to substantiate the prediction
for the formfactors corresponding to the low-lying particle-hole excitations.
We also obtain the formulas for the summation over the particle-hole states
corresponding to the power-law asymptotics of the correlators.
