PLANE AND SPHERICAL WAVES SOLUTIONS OF THE FIELD EQUATION FOR A COMPLEX SCALAR FIELD WITH A CUBIC NONLINEAR TERM IN FOUR DIMENSIONAL MINKOWSKI SPACE
四维Minkowski空间中具有立方非线性复标量场方程的平面与球面波解

The field equation for a complex scalar field with a cubic nonlinear term in tour-dimensional Minkowski space is studied. Two classes of exact solutions, corresponding to solutions of plane and spherical waves, are presented.