Abstract
The problem of integration is discussed for a complete system of Newman-Penrose equations for electrovacuum spaces of the general theory of relativity with nonzero cosmological constant. In terms of the method of spin coefficients, we formulate conditions on the electromagnetic and gravitational field variables, which distinguish a special class of Riemann spaces corresponding to strong gravitational waves in semiclosed Universes of Bertotti-Robinson type.
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Translated from Izvestiya Vysshikh Uchebnykh Zavederiii, Fizika, No. 11, pp. 74–78, November, 1987.
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Khlebnikov, V.I. Strong gravitational waves in semiclosed electromagnetic universes. Statement and analysis of the problem in terms of the method of spin coefficients. Soviet Physics Journal 30, 968–971 (1987). https://doi.org/10.1007/BF00898521
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DOI: https://doi.org/10.1007/BF00898521