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Journal Article

Revisiting the Light Cone of the Gödel Universe

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Dautcourt,  G.
Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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cqg6_4_013.pdf
(Publisher version), 385KB

0511015.pdf
(Preprint), 401KB

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Citation

Dautcourt, G., & Abdel-Megied, M. (2006). Revisiting the Light Cone of the Gödel Universe. Classical and Quantum Gravity, 23, 1269-1288.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-4C7B-8
Abstract
The structure of a light cone in the Goedel universe is studied. We derive the intrinsic cone metric, calculate the rotation coefficients of the ray congruence forming the cone, determine local differential invariants up to second order, describe the crossover (keel) singularities and give a first discussion of its focal points. Contrary to many rotation coefficients, some inner differential invariants attain simple finite standard values at focal singularities.