Comparison of analytical solution of spin-dependent DGLAP equations for   g_1^{NS}(x, t) at small x by two methods
  Analytical solutions for the non-singlet polarized parton distribution are obtained by solving the DGLAP equation by two analytical methods: Lagranges Method and Method of Characteristics.The relative merits of the two methods are discussed while comparing with HERMES data in the small x region.We also calculate the partial spin fractions carried by small x, nonsinglet partons. 
Neelakshi N. K. Borah, Dilip K. Choudhury and P. K. Sahariah
hep-ph