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physics.hist-ph2024
Are General Relativity and Teleparallel Gravity Theoretically Equivalent?
James Owen Weatherall, Helen Meskhidze
Teleparallel gravity shares many qualitative features with general relativity, but differs from it in the following way: whereas in general relativity, gravitation is a manifestati…
physics.hist-ph2024
A Puzzle About General Covariance and Gauge
Eleanor March, James Owen Weatherall
We consider two simple criteria for when a physical theory should be said to be "generally covariant", and we argue that these criteria are not met by Yang-Mills theory, even on ge…
physics.hist-ph2024
Conservation Principles in AQUAL
Clara Bradley, James Owen Weatherall
We consider conservation of momentum in AQUAL, a field-theoretic extension to Modified Newtonian Dynamics (MOND). We show that while there is a sense in which momentum is conserved…