Propagator of Yang–Mills field in light-cone gauge

Problem of the form of the Yang–Mills field propagator in the light-cone gauge $n_{\mu}A_{\mu}=0, \ n^2=0$ is studied. By means of transition from the Hamiltonian gauge $A_0=0$ to the light-cone gauge two different classes of propagators are obtained. The propagator proposed by Mandelstam [2] and Leybrandt [9] belongs to one of these classes.