Rz. Zhdanov et Wi. Fushchych, CONDITIONAL SYMMETRY AND NEW CLASSICAL-SOLUTIONS OF THE YANG-MILLS EQUATIONS, Journal of physics. A, mathematical and general, 28(21), 1995, pp. 6253-6263
We suggest an effective method for reducing the Yang-Mills equations t
o systems of ordinary differential equations. With the use of this met
hod we construct extensive families of new exact solutions of the Yang
-Mills equations. Analysis of the solutions thus obtained shows that t
hey correspond to the conditional (non-classical) symmetry of the equa
tions under study.