Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1996-07-24
J.Math.Phys. 39 (1998) 423-442
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
21 pages LaTex
Scientific paper
10.1063/1.532328
A method has been recently proposed for defining an arbitrary number of differential calculi over a given noncommutative associative algebra. As an example a version of quantized space-time is considered here. It is found that there is a natural differential calculus using which the space-time is necessarily flat Minkowski space-time. Perturbations of this calculus are shown to give rise to non-trivial gravitational fields.
Madore John
Mourad Jihad
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