scholarly journals PMBH Theory of Representation of Gravity Field Equation and Solutions, Hawking Radiation in Data General Relativity Theory

2021 ◽  
Author(s):  
Sangwha Yi
Keyword(s):  
General Relativity ◽  
Black Hole ◽  
Field Equation ◽  
Gravity Field ◽  
Hawking Radiation ◽  
Relativity Theory ◽  
General Relativity Theory ◽  
Schwarzschild Solution ◽  
Massive Black Hole

In the general relativity theory, we find the representation of the gravity field equation and solutions. We treat the representation of Schwarzschild solution, Reissner-Nodstrom solution, Kerr-Newman solution, Robertson -Walker solution. We found new general relativity theory (we call it Data General Relativity Theory; DGRT). We treat the data of Hawking radiation by Data general relativity theory. This theory has to apply black hole (specially, Primordial Massive Black Hole; PMBH) because black hole(PMBH) is an idealistic structure.

scholarly journals Spherical Solution of Classical Quantum Gravity

2021 ◽  
Author(s):  
Sangwha Yi
Keyword(s):  
General Relativity ◽  
Quantum Theory ◽  
Field Equation ◽  
Quantum Gravity ◽  
Gravity Field ◽  
Classical Field ◽  
The Other ◽  
Relativity Theory ◽  
General Relativity Theory ◽  
Classical Quantum

In the general relativity theory, using Einstein’s gravity field equation, we discover the spherical solution of the classical quantum gravity. The careful point is that this theory is different from the other quantum theory. This theory is made by the Einstein’s classical field equation.

scholarly journals New Gravity Field Equation is derived by Einstein Field Equation in General Relativity Theory

2021 ◽  
Author(s):  
Sangwha Yi
Keyword(s):  
General Relativity ◽  
Field Equation ◽  
Gravity Field ◽  
Order Term ◽  
Einstein Field Equation ◽  
Einstein Gravity ◽  
Cosmological Term ◽  
Relativity Theory ◽  
General Relativity Theory ◽  
Curvature Term

We found the 4-order curvature term satisfied the co-variant derivative. Einstein gravity fieldequation is consist of 2-order curvature terms. Hence, the 4-order curvature term and 2-order curvature termsmake new gravity field equation. In this point, Einstein’s gravity field equation can be modified by new 4-order curvature term because gravity field equation’s term doesn’t have to be 2-order term. Indeed, Einsteinhimself was like that, 0-order term, the cosmological term. Therefore, our theory is based on legitimate facts.

scholarly journals New Coordinate Vacuum Solution in Cosmological General Theory of Relativity

2021 ◽  
Author(s):  
Sangwha Yi
Keyword(s):  
General Relativity ◽  
Field Equation ◽  
General Theory ◽  
Gravity Field ◽  
Vacuum Solution ◽  
Relativity Theory ◽  
Theory Of Relativity ◽  
General Theory Of Relativity ◽  
General Relativity Theory

In the general relativity theory, we discover new vacuum solution by Einstein’s gravity field equation. We investigate the new coordinate in cosmological general theory of relativity (CGTR).

scholarly journals Cosmological General Theory of Relativity

2021 ◽  
Author(s):  
Sangwha Yi
Keyword(s):  
General Relativity ◽  
Field Equation ◽  
General Theory ◽  
Gravity Field ◽  
Relativity Theory ◽  
Theory Of Relativity ◽  
General Theory Of Relativity ◽  
General Relativity Theory

In expanded universe, we found gravity field equation and solution. We found Schwarzschildsoluti on, Kerr-Newman solution in expanded universe. Hence, We found new general relativity theory-Cosmological General Theory of Relativity(CGTR).

scholarly journals Einstein’s Notational Equation of Electro-Magnetic Field Equation in Rindler spacetime

2021 ◽  
Author(s):  
Sangwha Yi
Keyword(s):  
Magnetic Field ◽  
General Relativity ◽  
Field Equation ◽  
Electromagnetic Fields ◽  
Space Time ◽  
Relativity Theory ◽  
General Relativity Theory ◽  
Electro Magnetic Field ◽  
Rindler Space ◽  
Electro Magnetic

We find Einstein’s notational equation of the electro-magnetic field equation and the electromagneticfield in Rindler space-time. Because, electromagnetic fields of the accelerated frame include in general relativity theory.

scholarly journals Charged and Non-Charged Black Hole Solutions in Mimetic Gravitational Theory

Symmetry ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 559 ◽  
Author(s):  
Gamal Nashed
Keyword(s):  
Black Holes ◽  
General Relativity ◽  
Black Hole ◽  
Gravitational Theory ◽  
Relativity Theory ◽  
Charged Black Hole ◽  
Field Equations ◽  
General Relativity Theory ◽  
Mimetic Theory ◽  
Black Hole Solutions

In this study, we derive, in the framework of mimetic theory, charged and non-charged black hole solutions for spherically symmetric as well as flat horizon spacetimes. The asymptotic behavior of those black holes behave as flat or (A)dS spacetimes and coincide with the solutions derived before in general relativity theory. Using the field equations of non-linear electrodynamics mimetic theory we derive new black hole solutions with monopole and quadrupole terms. The quadruple term of those black holes is related by a constant so that its vanishing makes the solutions coincide with the linear Maxwell black holes. We study the singularities of those solutions and show that they possess stronger singularity than the ones known in general relativity. Among many things, we study the horizons as well as the heat capacity to see if the black holes derived in this study have thermodynamical stability or not.

scholarly journals A Review on Black hole solutions in General Relativity

2021 ◽  
Vol 16 (3) ◽  
Author(s):  
Monika Sati ◽  
K.C. Petwal
Keyword(s):  
Black Holes ◽  
General Relativity ◽  
Black Hole ◽  
Field Equation ◽  
Einstein Field Equation ◽  
Schwarzschild Solution ◽  
Penrose Diagram ◽  
Static Solutions ◽  
Spherical Mass ◽  
Black Hole Solutions

In the present manuscript, we endeavour to review and develop the black hole solutions in general relativity. We emphasize here the Schwarzschild solution in Einstein’s field equation, which describes the gravitational field outside a spherical mass. The paper aims to obtain certain results, including the description of the Einstein field equation with stationary and static solutions and components of the metric that turns out to be time independent, some experiments on the Schwarzschild - Penrose diagram, the Kerr-Newman solution for rotating black holes, and the Reissner- Nordstrom solution for static and charged black holes.

scholarly journals Vaidya solutions in general covariant Hořava–Lifshitz gravity without projectability: Infrared limit

2014 ◽  
Vol 23 (08) ◽  
pp. 1450068 ◽  
Author(s):  
O. Goldoni ◽  
M. F. A. da Silva ◽  
G. Pinheiro ◽  
R. Chan
Keyword(s):  
General Relativity ◽  
Gauge Field ◽  
Radiation Field ◽  
Relativity Theory ◽  
Covariant Theory ◽  
Spherically Symmetric ◽  
Theory U ◽  
General Relativity Theory ◽  
Infrared Limit ◽  
Symmetric Spacetime

In this paper, we have studied nonstationary radiative spherically symmetric spacetime, in general covariant theory (U(1) extension) of Hořava–Lifshitz (HL) gravity without the projectability condition and in the infrared (IR) limit. The Newtonian prepotential φ was assumed null. We have shown that there is not the analogue of the Vaidya's solution in the Hořava–Lifshitz Theory (HLT), as we know in the General Relativity Theory (GRT). Therefore, we conclude that the gauge field A should interact with the null radiation field of the Vaidya's spacetime in the HLT.

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