Ck. Das et Ar. Chowdhury, Lie-Backlund symmetries of two-dimensional SU(2) Yang-Mills system and nonhomogeneous Lax pair, INT J THEOR, 39(4), 2000, pp. 1101-1108
We obtain the Lie-Backlund-type symmetries of the two-dimensional SU(2) Yan
g-Mills: equation with the help of a generalized formal series method. Both
(x, t)-dependent and independent symmetries are obtained and it is shown t
hat they form a closed algebra. Finally a nonhomogeneous Lax equation is de
rived using these symmetries.