RELATIVISTIC THEORY OF GRAVITY AND THE MACH PRINCIPLE

摘要

The relativistic theory of gravity (RTG) is constructed within the framework of special relativity. The density of the energy-momentum tensor of all fields of matter, including the gravitational field, serves as the source of the gravitational field. The theory includes the conservation laws of energy-momentum and angular momentum. The concept of effective Riemann space arises, which is of a field origin. The forces of gravity and inertia are separated, and they differ in nature. The equality between the inertial and gravitational masses arises as a consequence of the density of the tensor of matter being the source of the gravitational field. The theory unequivocally requires introduction of the graviton mass. The cosmological constant is expressed via the graviton mass. The set of RTG equations is hyperbolic and differs from the set of GRT equations. The theory unambiguously explains all known gravitational effects in the Solar system, reduced to an inertial reference system. Acceleration in RTG has an absolute sense. The Mach principle is fulfilled. According to RTG, a homogeneous and isotropic Universe can only be "plane", and it develops cyclically starting from a certain maximum density down to a minimum, etc. The theory predicts the existence in the Universe of a large hidden mass of matter. The notion of collapse is altered. It turns out that when a spherically symmetric body of arbitrary mass collapses, the com pression process in the region close to the Schwarzshield sphere stops and is replaced by a subsequent expansion. Thus, according to RTG the existence of "black holes" (objects without material boundaries and "cut off' from the external world) in Nature is excluded. In RTG the concepts are revived of Newtonian theory and of special relativity theory (conservation laws, inertial reference systems, forces of gravity, acceleration relative to the space). The ambiguity is discussed in the work of the predictions of general relativity theory and of the impossibility of its field formulation in Minkowski space.