2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/202570We consider the Bjorken limit in the framework of the effective action approach and discuss its similarities to the Regge limit. The proposed effective action allows for a rather simple calculation of the known evolution kernels. We represent the result in terms of two-parton interaction operators involving gluon and quark operators depending on light-ray position and helicity and analyze their symmetry properties.32 pages LaTex, 4 eps-figures, comments added, minor correctionsHigh Energy Physics - Phenomenologytext