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Describing the projective structure P (given by the set of “freely falling particles”) and the conformal (light cone) structure ℂ of space time via subbundles of second order frame bundles, we investigate the existence and uniqueness of a Weyl geometry compatible with P and ℂ We first review some basic notions concerning the fibre bundle description of geometric structures on differentiable...
Typical difficulties in the formulation of conformal gauge theories concerning the role of special conformal transformations and Cartan connections are discussed within the theory of second order G-structures.
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