The uniqueness of axisymmetric monopole solutions to the Bogomolny equations is studied. The generalized Green identity for harmonic maps is used to prove that the Prasad-Sommerfield solution is the unique axisymmetric one-monopole solution. We discuss also the multimonopole solutions. © 1985.
Mazur, P. O., & Richter, E. (1985). Harmonic maps and uniqueness of axisymmetric monopole solutions. Physics Letters A, 109(9), 429–432. https://doi.org/10.1016/0375-9601(85)90536-5