Physical interpretation of the Kerr-Newman-Ernst solutions

A relation is determined between the physical quantities in the Kerr-Newman priming solution and the Kerr-Newman-Ernst solution transformed by using the Harrison solution. It is shown that this latter possesses a nonsingular horizon of events. The values obtained for the 4-potential of the electromagnetic field of the transformed solution is in a linear approximation in the magnetic field intensity.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 10, pp. 39–45, October, 1989.     

Gravitational radiation from Coulomb collisions

The problem is considered of gravitational bremsstrahlung radiation from collisions between nonrelativistic charged particles at arbitrary values of the Born parameter ¦e₁e₂¦/hv (with exact Coulomb wave functions). It is shown that the existing estimates of this type of radiation from the solar plasma are far too high as they are based on equations for the cross section which are not applicable at the given temperature. A new estimate is derived.Translated from Izvestiya Vysshykh Uchebnykh Zavedenii, Fizika, No. 12, pp. 94–99, December, 1974.     

Finite-dimensional Grassmann algebras and structure of the equations of simple supergravity

Theoretical and Mathematical Physics -     

Adiabatic expansions of green's functions in electromagnetic and gravitational fields. Radiative corrections

A solution of Maxwell's equations is constructed that describes a homogeneous electromagnetic field in a curved space-time in the lowest adiabatic approximation in the curvature. The Green's function for Dirac particles in this field is constructed to the same accuracy. It is shown that in the case of a super strong magnetic field the main approximation is the two-dimensional approximation, moreover, the gravitational correction is determined by a single component of the curvature tensor R₁₂₃₀. The mass operator of the electron is calculated in this approximation.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 32–38, February, 1986.     

Filling of quasibound states by electrons in a schwarzchild field

Quasistationary states with energies < exist in the vicinity of a Schwarzchild black hole. The process of filling of these states by massive spinor particles is examined. The analysis is conducted in the Pauli approximation for small black holes M 1. In this case, it turns out that the distribution is a thermal distribution.Translated from Izvestiya Vysshikh Uchebnykh Zabedenii, Fizika, No. 8, pp. 75–77, August, 1983.