{ 2008 09 }

## Charge, geometry, and effective mass in the Kerr-Newman solution to the Einstein field equations

Foundations of Physics Vol. 38, pp. 959-968 (2008)

The original publication is available at www.springerlink.com

http://dx.doi.org/10.1007/s10701-008-9245-x

It has been shown that for the Reissner-Nordstrom solution to the vacuum Einstein field equations charge, like mass, has a unique space-time signature [*Found. Phys*. **38**, 293-300 (2008)]. The presence of charge results in a negative curvature. This work, which includes a discussion of effective mass, is extended here to the Kerr-Newman solution.

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