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          Institute: MPI für Gravitationsphysik     Collection: Quantum Gravity and Unified Theories     Display Documents



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ID: 293703.0, MPI für Gravitationsphysik / Quantum Gravity and Unified Theories
Revisiting the Light Cone of the Gödel Universe
Authors:Dautcourt, G.; Abdel-Megied, M.
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Classical and Quantum Gravity
Volume:23
Start Page:1269
End Page:1288
Review Status:not specified
Audience:Not Specified
Abstract / Description: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.
External Publication Status:published
Document Type:Article
Communicated by:Hermann Nicolai
Affiliations:MPI für Gravitationsphysik/Quantum Gravity and Unified Theories
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