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has been cited by the following article:

• TITLE: The Propagation Delay Effect of the Expansion and Inflation of the Universe

  AUTHORS: Philipp Kornreich

  KEYWORDS: Space-Time, Universe, Inflation, Einstein Equation, Momentum Current, Propagation Delay

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.6 No.10, October 24, 2018

  ABSTRACT: The effect of the propagation delay of gravitational interactions results in a singularity of the normalized acceleration of the radius of a sphere representing the Universe. Stephen Hawking in his Inflation Model also discusses a delay type interaction. This term can be used to model the inflationary rapid expansion of the early Universe. Since the Universe is thought to occupy all of space-time, one cannot define a boundary or radius of the Universe. Therefore, the properties of a sphere in the Universe are analyzed. It is assumed that the Universe will behave similarly to this sphere. This analysis is performed by including the effect of the propagation delay of gravitational interactions in Einstein’s equation.