Spherically symmetric solutions of Yang-Mills equations in D = 7 arbitrary gauge group

Yang-Mills theory in D = 7 with arbitrary gauge group G is considered. By use of the octonionic algebra we reduce D = 7 Yang-Mills equations to the nonlinear ordinary differential equations (Ward equations). As an example, we write out the explicit form of some solutions, which are the seven-dimensional analogues of the d = 4 instanton