  In this paper the spin-dependent singlet and non-singlet structure functions
have been obtained by solving Dokshitzer-Gribov-Lipatov-Altarelli-Parisi
evolution equations in next-to-leading order in the small x limit. Here we have
used Taylor series expansion and then the particular and unique solution to
solve the evolution equations. We have also calculated t evolutions of
deuteron, proton and neutron structure functions and the results are compared
with the SLAC E-143 Collaboration data.
