Comment on work of Yang and Nevels "Direct, analytic solution for the electromagnetic vector potential in any gauge" (arXiv:2507.02104)

Abstract

In the Comment the procedure for obtaining a solution for the electromagnetic potential, presented in the cited work arxiv:2507.02104, is analyzed. It is shown that the solution obtained by the authors is based on some mathematically illegal operations. This argument is supported by a counterexample to equation (10) of the cited work. Direct calculations of the potentials in the Lorenz and Coulomb gauges show that equation (10) is not satisfied.

arXiv comment4 pages, no figures, amsart, comment on arXiv:2507.02104