Question: Which famous inventor coined the theory of relativity?
About the article "Physics", section "Astrophysics".

Candidate passages:
Laurent Nottale (born 29 July 1952) is an astrophysicist, a director of research at CNRS, and a researcher at the Paris Observatory.
He is the author and inventor of the theory of Scale Relativity which aims to unify quantum physics and relativity theory. 
There have been various attempts to find modifications to general relativity.
The most famous of these are the Brans–Dicke theory (also known as scalar-tensor theory), and Rosen's bimetric theory.
Both of these theories proposed changes to the field equations of general relativity, and both suffer from these changes permitting the presence of bipolar gravitational radiation.
As a result, Rosen's original theory has been refuted by observations of binary pulsars.
As for Brans–Dicke (which has a tunable parameter "ω" such that "ω = ∞" is the same as general relativity), the amount by which it can differ from general relativity has been severely constrained by these observations.
In addition, general relativity is inconsistent with quantum mechanics, the physical theory that describes the wave–particle duality of matter, and quantum mechanics does not currently describe gravitational attraction at relevant (microscopic) scales.
There is a great deal of speculation in the physics community as to the modifications that might be needed to both general relativity and quantum mechanics in order to unite them consistently.
The speculative theory that unites general relativity and quantum mechanics is usually called quantum gravity, prominent examples of which include String Theory and Loop Quantum Gravity. 
In 1967, he went to United States to study General Relativity theory at "Central Studies of Gravitation" at Syracuse University under direction of Peter Bergmann and Joshua N. Goldberg whom were among authoritative experts in general relativity after the inventor, Albert Einstein.
Here, Pantur went furthermore studied one of the hottest topics in physics at the time which tried to unify quantum field and general relativity to find quantum gravity theory.
It is one of Einstein's dream which had tried but failed to formalize the fourth interaction in the universe into one single theory called Grand Unified Theory.
Pantur finished his dissertation with title "Null Tetrad, Formulation of the Equation of Motion in General Relativity" in 1971.
Having come back to Indonesia, Pantur became the first Indonesian scientist who studied Einstein's General Relativity to a doctoral level.
Some of his research papers were published in General Relativity and Gravitation, the journal of the International Society on General Relativity and Gravitation.
Pantur became full professor at ITB in 1995. 
He is inventor of the turbutron, a high power millimeter-wave source (US Patent 4,553,068), and co-inventor of a quantum key receiver based on a positive operator valued measure (US Patent 5,999,285).
His broad research interests include quantum field theory, quantum computation, quantum cryptography, quantum optics, general relativity, and non-neutral plasma physics. 
"Equivalent to the original ?
No.
"Test theories of special relativity are flat space-time theories which differ from special relativity by having a different postulate about light concerning one-way speed of light vs two-way speed of light.
Different postulates on light result in different notions of time simultaneity.
There is Robertson's test theory (1949) which predicts different experimental results from Einstein's special relativity, and then there is Edward's theory (1963) which cannot be called a test theory because it is physically equivalent to special relativity, and then there is the Mansouri-Sexl theory (1977) which is equivalent to Robertson's theory.