The gravitational waves are fictitious entities - III

Only Levi-Civita's electromagnetic interpretation of the characteristic hypersurfaces of Einstein field equations is conceptually correct.Comment: 7 pages, PDF from MS-Word9

Non-existence of gravitational waves. The stages of the theoretical discovery (1917-2003)

A short history of the theoretical discovery that the gravitational waves of general relativity do not have a physical reality.Comment: 5 pages, LaTeX, added a parergon on PSR 1913+1

Relativistic motions

A physical consequence of a well-known Fermi's theorem: no motion of masses can generate gravitational waves.Comment: 2 pages, PD

On the displacements of Einsteinian fields et cetera

I give here: i) a very simple proof that the physical non-existence of gravitational waves (GW's) is quite consistent with the basic principles of general relativity (GR); ii) a new argument against the physical existence of GW's; iii) a criticism of Fock's treatment of the GW's; iv) some remarks on recent experimental investigations concerning the GW's.Comment: 5 pages, LaTex, to be published on Spacetime & Substanc

On Michell-Laplace dark body

The dark body of Michell-Laplace has nothing to do with the relativistic black hole.Comment: 2 pages, LaTeX, corrected Mitchell into Michell in title and abstrac

On PSR1913+16

There are reference frames for which both stars of binary radio-pulsar PSR1913+16 are at rest. As a consequence, PSR1913+16 does not emit gravity waves. (If the accelerated bodies should send out a gravitational radiation, they would represent a class of physically privileged systems. But this is forbidden by general relativity.)Comment: 6 pages, PDF, submitted to Il Nuovo Ciment

On the concept of mass point in general relativity

The correct characterization of the concept of mass point in general relativity is a straightforward consequence of the original form of solution given by Schwarzschild to the problem of the Einstein field of a material point.Comment: 6 pages, PD

On the passive gravitational mass

A good candidate to the role of passive gravitational mass of a Schwarzschild's incompressible sphere is represented by the substantielle Masse of the sphere, which is larger than the active gravitational mass. Presumably this inequality has a general validity, i.e. it is not limited to the homogeneous spheres of incompressible fluids.Comment: 6 pages, PD

The generation of gravitational waves

A proof that the generation of gravitational waves is physically impossible.Comment: 2 pages, PDF, submitted to Physical Review Letter

On the origin of the notion of GW et cetera

The notion of gravitational wave (GW) came forth originally as a by-product of the linear approximation of general relativity (GR). Now, it can be proved that this approximation is quite inadequate to a proper study of the hypothetic GW's. The significant role of the approximations beyond the linear stage is emphasized.Comment: 7 pages, LaTeX, to be published on Spacetime & Substanc