2 problems

Fix a time $t$ and let $\phi_1(t,{\boldsymbol{{ q}} })$ and $\pmb{{\cal A}}_1(t,{\boldsymbol{{ q}} })$ be the scalar and vector electromagnetic potentials used in the Hamilton–Jaco…

Let the Maxwell–Born–Infeld fields be generated by generic smooth subluminal point-source motions, and let their electromagnetic potentials be represented in the Lorenz–Lorentz gau…