434 citations · 1.2k across the 23 of their papers we have counts for
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Generating solutions for charged stellar models in general relativity
B. V. Ivanov
It is shown that the expressions for the tangential pressure, the anisotropy factor and the radial pressure in the Einstein - Maxwell equations may serve as generating functions fo…
Linear and Riccati equations in generating functions for stellar models in general relativity
B. V. Ivanov
It is shown that the expressions for the tangential pressure, the anisotropy factor and the radial pressure in the Einstein equations may serve as generating functions for stellar…
A conformally flat realistic anisotropic model for a compact star
B. V. Ivanov
A physically realistic stellar model with a simple expression for the energy density and conformally flat interior is found. The relations between the different physical conditions…
A different approach to anisotropic spherical collapse with shear and heat radiation
B. V. Ivanov
In order to study the type of collapse, mentioned in the title, we introduce a physically meaningful object, called the horizon function. It directly enters the expressions for man…
All solutions for geodesic anisotropic spherical collapse with shear and heat radiation
B. V. Ivanov
We introduce a physically important object, called the horizon function, in the study of geodesic collapse. It is closely related to the stellar characteristics and satisfies a sim…
Collapsing shear-free perfect fluid spheres with heat flow
B. V. Ivanov
A global view is given upon the study of collapsing shear-free perfect fluid spheres with heat flow. We apply a compact formalism, which simplifies the isotropy condition and the c…
Self-gravitating spheres of anisotropic fluid in geodesic flow
B. V. Ivanov
The fluid models mentioned in the title are classified. All characteristics of the fluid are expressed through a master potential, satisfying an ordinary second order differential…
Weyl electrovacuum solutions and gauge invariance
Boyko V. Ivanov
It is argued that in Weyl electrovacuum solutions the linear term in the metric cannot be eliminated just on grounds of gauge invariance. Its importance is stressed.
On the gravitational field induced by static electromagnetic sources
Boyko V. Ivanov
It is argued that static electromagnetic sources induce Weyl-Majumdar-Papapetrou solutions for the spacetime metric. The acceleration in such fields has a term many orders of magni…
No news for Kerr-Schild fields
Boyko V. Ivanov
Algebraically special fields with no gravitational radiation are described. Kerr-Schild fields, which include as a concrete case the Kinnersley photon rocket, form an important sub…
Colliding beams of light
B. V. Ivanov
The stationary gravitational field of two identical counter-moving beams of pure radiation is found in full generality. The solution depends on an arbitrary function and a paramete…
Rigidly rotating cylinders of charged dust
B. V. Ivanov
The gravitational field of a rigidly rotating cylinder of charged dust is found analytically. The general and all regular solutions are divided into three classes. The acceleration…
On rigidly rotating perfect fluid cylinders
B. V. Ivanov
The gravitational field of a rigidly rotating perfect fluid cylinder with gamma- law equation of state is found analytically. The solution has two parameters and is physically real…
Static charged perfect fluid spheres in general relativity
B. V. Ivanov
Interior perfect fluid solutions for the Reissner-Nordstrom metric are studied on the basis of a new classification scheme. General formulas are found in many cases. Explicit new g…
Maximum bounds on the surface redshift of anisotropic stars
B. V. Ivanov
It is shown that for realistic anisotropic star models the surface redshift can not exceed the values 3.842 or 5.211 when the tangential pressure satisfies the strong or the domina…
Integrable cases of gravitating static isothermal fluid spheres
B. V. Ivanov
It is shown that different approaches towards the solution of the Einstein equations for a static spherically symmetric perfect fluid with a gamma-law equation of state lead to an…
Expanding, axisymmetric pure-radiation gravitational fields with a simple twist
B. V. Ivanov
New expanding, axisymmetric pure-radiation solutions are found, exploiting the analogy with the Euler-Darboux equation for aligned colliding plane waves.
Pure-radiation gravitational fields with a simple twist and a Killing vector
B. V. Ivanov
Pure-radiation solutions are found, exploiting the analogy with the Euler- Darboux equation for aligned colliding plane waves and the Euler-Tricomi equation in hydrodynamics of two…
Algebraically special, expanding and twisting gravitational fields with vanishing NUT parameter
B. V. Ivanov
The system of Einstein-Maxwell equations for fields mentioned in the title is simplified. Known pure radiation solutions are systematized and new solutions are given by separating…
Towards a regular type N vacuum gravitational field
B. V. Ivanov
An exact twisting type N vacuum solution is found. It has regular gauge and curvature invariants and decays to flat spacetime for big retarded times.
Diagonalization of pp-waves
B. V. Ivanov
A coordinate transformation is found which diagonalizes the axisymmetric pp-waves. Its effect upon concrete solutions, including impulsive and shock waves, is discussed.
Colliding plane waves with W=M=0
B. V. Ivanov
It is shown that there are three vacuum and one electrovacuum solutions of diagonal plane waves with M=0 and constant Maxwell scalars. Namely, these are the single wave, Stoyanov,…
Colliding axisymmetric pp-waves
B. V. Ivanov
An exact solution is found describing the collision of axisymmetric pp-waves with M=0. They are impulsive in character and their coordinate singularities become point curvature sin…