The differential operators are self-adjoint under integration by parts, so the <Euler-Lagrange field equations> are
$$
\widetilde a\Box V^\nu
+\widetilde b\partial^\nu(\partial\cdot V)
+m^2V^\nu=0.
$$

Solution

Past exam of the mathematics course of the University of Cambridge / 2025 / iii / Paper 301 / 2 / a / ii / Solution

 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2025/iii/paper-301/2/a/ii/solution