Philosophy of Science 84 (5):1202-1214 (2017)

Authors
Dennis Lehmkuhl
Universität Bonn
Abstract
The problem of motion in general relativity is about how exactly the gravitational field equations, the Einstein equations, are related to the equations of motion of material bodies subject to gravitational fields. This article compares two approaches to derive the geodesic motion of matter from the field equations: the ‘T approach’ and the ‘vacuum approach’. The latter approach has been dismissed by philosophers of physics because it apparently represents material bodies by singularities. I argue that a careful interpretation of the approach shows that it does not depend on introducing singularities at all and that it holds at least as much promise as the T approach.
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DOI 10.1086/694398
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References found in this work BETA

The Scientific Image.William Demopoulos & Bas C. van Fraassen - 1982 - Philosophical Review 91 (4):603.
The Scientific Image.Michael Friedman - 1982 - Journal of Philosophy 79 (5):274-283.

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Scientific Realism Made Effective.Porter Williams - 2019 - British Journal for the Philosophy of Science 70 (1):209-237.
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Dark Matter = Modified Gravity? Scrutinising the Spacetime–Matter Distinction Through the Modified Gravity/ Dark Matter Lens.Niels C. M. Martens & Dennis Lehmkuhl - 2020 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 72:237-250.
General Relativity as a Hybrid Theory: The Genesis of Einstein's Work on the Problem of Motion.Dennis Lehmkuhl - 2019 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 67:176-190.

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