On the compatibility of relativistic wave equations in riemann spaces

摘要: On a previous occasion it was shown that the « natural generalization » to Riemann spaceV 4 of certain set flat-space free-field equations for particles spinS=3/2 is internally consistent if and only theV 4 an Einstein space. It now that, this case apart, all spinS⩾3/2 which may be said conform strong principle equivalence are compatible constant Riemannian curvature. The corresponding second-order wave in such space written down. Certain modified first-order caseS=2 involve curvature tensor explicitly