Irina Radinschi

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We calculate the energy distribution in a static spherically symmetric nonsingular black hole space-time by using the Tolman’s energymomentum complex. All the calculations are performed in quasiCartesian coordinates. The energy distribution is positive everywhere and be equal to zero at origin. We get the same result as obtained by Y-Ching Yang by using the(More)
We calculate the energy distribution of an anisotropic model of universe based on the Bianchi type I metric in the Tolman’s prescription. The energy due to the matter plus gravitational field is equal to zero. This result agrees with the results of Banerjee and Sen and Xulu. Also, our result supports the viewpoint of Tryon and Rosen.
The localization of energy is a long-standing problem in the theory of general relativity. Also, it is claimed that the energy cannot be localized. We do not share this opinion. It is possible to evaluate the energy and momentum distribution by using various energy-momentum complexes. There exist an opinion that the energymomentum complexes are not useful(More)
We provide a new electromagnetic mass model admitting non static conformal symmetry. We conclude that the pressure and density failed to be regular at the origin but gravitational mass is always positive and vanishes in the limit r → 0 i.e. it does not have to tolerate the problem of singularity. Further, we match interior metric with the exterior(More)
The Keski-Vakkuri, Kraus and Wilczek (KKW) analysis is used to compute the temperature and entropy in the dyadosphere of a charged black hole solution. For our purpose we choose the dyadosphere region of the Reissner-Nordström black hole solution. Our results show that the expressions of the temperature and entropy in the dyadosphere of this charged black(More)
The energy distributions of four 2+1 dimensional black hole solutions were obtained by using the Einstein and Møller energy-momentum complexes. While r → ∞, the energy distributions of Virbhadra’s solution for the Einstein-massless scalar equation becames EEin ∼ π κ (1 − q)R and EMøl ∼ − 2π κ q(1− q)R, and the energy distributions of these three solutions(More)
Møller’s energy-momentum complex is employed in order to determine the energy and momentum distributions for a spacetime described by a “generalized Schwarzschild” geometry in (3+1)-dimensions on a noncommutative curved D3brane in an effective, open bosonic string theory. The geometry considered is obtained by an effective theory of gravity coupled with a(More)