"Divergence Theorem" . "surface term" . "''n''-dimensional divergence theorem" . "Gauss divergence theorem" . . . . "Divergence theorem" . "Gauss's theorem" . . "Gauss's divergence theorem" . "Gauss's Theorem" . "divergence" . "Gauss' theorem" . "Divergence theorem" . . . "\\\"charge\\\"" . . . . . . . . . . "Gauss-Ostrogradsky theorem" . "Gauss\u2019 theorem" . "proved" . "divergent-free" . "divergence theorem" .