Astronomy Reports -- December 2003 Volume 47, Issue 12, pp. 975-1062 Topology of the Universe and Topological Inflation D. D. Sokoloff pp. 975-978 Full Text: PDF (123 kB) The Formation of the First Objects During the Virialization of the Dark-Matter Halos E. O. Vasiliev and Yu. A. Shchekinov pp. 979-988 Full Text: PDF (279 kB) Masses of Stellar Black Holes and Testing Theories of Gravitation K. A. Postnov and A. M. Cherepashchuk pp. 989-999 Full Text: PDF (230 kB) Cepheids in LMC Clusters and the Period–Age Relation Yu. N. Efremov pp. 1000-1012 Full Text: PDF (368 kB) Hydrodynamical Modeling of Mass Transfer in the Close Binary System beta Lyr V. V. Nazarenko and L. V. Glazunova pp. 1013-1026 Full Text: PDF (759 kB) Two-Dimensional Hydrodynamical Modeling of Mass Transfer in Semidetached Binaries with Asynchronously Rotating Components V. V. Nazarenko and L. V. Glazunova pp. 1027-1037 Full Text: PDF (1124 kB) Observational Studies of the Angular Structure of the Radio Galaxy 3C 234 at Decameter Wavelengths A. V. Megn, S. Ya. Braude, S. L. Rashkovskiy, N. K. Sharykin, V. A. Shepelev, G. A. Inyutin, R. V. Vashchishin, A. I. Brazhenko, and V. G. Bulatsen pp. 1038-1045 Full Text: PDF (248 kB) Returning Positron Flux in the Polar-Cap Regions of a Radio Pulsar D. P. Barsukov and A. I. Tsygan pp. 1046-1053 Full Text: PDF (212 kB) Cosmogenic Radiocarbon as a Means of Studying Solar Activity in the Past G. E. Kocharov, M. G. Ogurtsov, and S. L. Tsereteli pp. 1054-1062 Full Text: PDF (207 kB)