Please join us this week for the final talk of the year – in Chicago at 11am in UH1430, on skype in Geneva, or on YouTube.
• Wednesday 31 May 2017 at UIC – Nic Teh (Notre Dame): Newton-Cartan theory and Emergent Newtonian Gravitation
Abstract: In recent work on the philosophy of Newtonian gravitation, there has been much discussion of whether the theory’s “spacetime geometry” is best conceived of as Newton-Cartan geometry, on the one hand, or Maxwellian geometry, on the other hand. Roughly speaking, there have been two approaches to understanding this question: one starts from the idea of “relations between observers”, and the other begins from the standard differential geometric architecture of Newton-Cartan theory and the Trautman Recovery Theorem. In this talk, I will explain how the two approaches can be reconciled, thereby yielding “emergent Newtonian gravitation” as a gauge-fixing of Newton-Cartan theory. In terms of technical difficulty, this talk rates 4/5