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Information × Registration Number 0207U005562, 0106U002890 , R & D reports Title Essentially relativistic objects: black holes and wormholes popup.stage_title Head Zaslavskij O., Доктор фізико-математичних наук Registration Date 14-05-2007 Organization Kharkov National University named after V.N.Karazin popup.description2 We found examples of metrics for which the apparent horizon is absent but the event horizon is present. In doing so, there no singularities in the spacetime. We showed the existence of metrics for which the proper mass is infinite whereas ADM mass is equal to zero. We analyzed in a general form static spacetimes with vanishing extrinsic tensor of space0like foliations. In exactly solvable models of two-dimensional dilaton gravity we found self-consistent geometries with the quantum field in the Boulware state. Product Description popup.authors popup.nrat_date 2020-04-02 Close