2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43458Accounting for double-logarithms of x and running QCD coupling leads to expressions for both the non-singlet and singlet components of $g_1$. These expressions manifest the Regge asymptotics when x ->0 and differ considerably from the DGLAP expressions at small values of x.Talk given at the 17th Workshop in Particle Physics, La Thuile,Italy, Feb.29-Mar. 6, 2004. 13pHigh Energy Physics - Phenomenologytext