Einstein-Maxwell-Dilation-Axion theory and absolute parallelism

In this thesis, using some prescriptions in cartesian and spherical coordinates, energy and energy-momentum density of some chosen universe models are calculated for the Einstein-Maxwell-Dilaton-Axion (EMDA) theory. Furthermore, axial vector torsions are also calculated for these universe models.The first section is the introduction. In the section of literature research, the energy densities obtained from some universe models for he absolute parallelism are examined in chronological order. In the material and method section, the calculation of the energy-momentum density in the cartesian and spherical coordinates is given based on literature. In the calculations and dicussion section, first the energy-momentum distribution is calculated in the cartesian coordinates by using Einstein, Bergman Thomson ve Landau-Liftshitz prescriptions for inhomogeneous Einstein-Maxwell-Dilaton Axion theory. Then, in the spherical coordinates, the energy-momentum distribution is calculated for special cases using Moller prescriptions for charged black holes. Finally, in the section of results and suggestions, the results obtained are examined and the present importance of the subject, and the question of how its puts a light on the foregoing studies are discussed.