Rm. Avakian et G. Oganessyan, MASS FORMULA FOR A STATIONARY AXISYMMETRICAL CONFIGURATION AND THE PHYSICAL REALIZATION OF THE KERR METRIC, Physics letters. A, 209(5-6), 1995, pp. 261-262
We analyse the expression for the mass of a stationary axisymmetric co
nfiguration in general relativity obtained in our previous work [Mod.
Phys. Lett. A 10 (1995) 841]. From the generality of our formula and i
ts incompatibility with the corresponding expression in Kerr space-tim
e we argue that a stationary equilibrium distribution of real matter c
annot be a source of the Kerr metric.