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Formulas for the longitudinal dielectric permeability in quantum degeneratecollisional plasma with the frequency of collisions proportional to the moduleof the wave vector, in Mermin's approach, are received. Equation ofShr\"{o}dinger - Boltzmann with integral of collisions relaxation type inMermin's approach is applied. It is spent numerical and graphic comparison ofthe real and imaginary parts of dielectric function of non-degenerate andmaxwellian collisional quantum plasma with a constant and a variablefrequencies of collisions. It is shown, that the longitudinal dielectricfunction weakly depends on a wave vector.

Longitudinal dielectric permeability into quantum degenerate plasma with frequency of collisions proportional to the module of a wave vector