1.3k citations
- Universidad Autónoma de MadridES24 papers
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- Max Planck Institute for Gravitational PhysicsDE19 papers
- University of Wisconsin–MilwaukeeUS15 papers
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- Tsinghua UniversityCN14 papers
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gr-qc2024★ 10 cited
Symmetry reduction of gravitational Lagrangians
Guillermo Frausto, Ivan Kolář, Tomáš Málek +1
We analyze all possible symmetry reductions of Lagrangians that yield fully equivalent field equations for any 4-dimensional metric theory of gravity. Specifically, we present a co…
gr-qc2024★ 1 cited
Geometry from geodesics: fine-tuning Ehlers, Pirani, and Schild
James T. Wheeler
Ehlers, Pirani, and Schild argued that measurements of null and timelike geodesics yield Weyl and projective connections, respectively, with compatibility in the lightlike limit gi…