Possible parametrization of parton distributions

The gluon and quark distributions of the nucleon are evaluated using the Altarelli-Parisi equations with the input distributions at Q02 = 5 GeV2 for sea-quarks and gluons modified by the factor (ax-0.5+b). The new parametrization incorporates singular small-x behaviour implied by bare Pomeron in QCD and provides consistent with large-x experimental data results as well. The theoretical predictions relevant for HERA for structure functions in the region of very small x (10-4 <x<10-2) and large Q2 and for the cross-section σ(γ*p→ΨΧ) are presented. 15 refs., 7 figs. (author)