The Wu–Yang monopole was the first solution (found in 1968 by Tai Tsun Wu and Chen Ning YangWu, T.T. and Yang, C.N. (1968) in Properties of Matter Under Unusual Conditions, edited by H. Mark and S. Fernbach (Interscience, New York)) to the Yang–Mills field equations. It describes a magnetic monopole which is pointlike and has a potential which behaves like 1/r everywhere.
See also Meron Dyon Instanton Wu–Yang dictionary
Notes
References Gauge Fields, Classification and Equations of Motion, M.Carmeli, Kh. Huleilil and E. Leibowitz, World Scientific Publishing