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Relativistic Kinematics in Flat and Curved Space-Times

by Patrick Moylan

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Submission summary

Authors (as registered SciPost users): Patrick Moylan
Submission information
Preprint Link: scipost_202212_00056v1  (pdf)
Date accepted: 2023-08-11
Date submitted: 2022-12-20 14:58
Submitted by: Moylan, Patrick
Submitted to: SciPost Physics Proceedings
Proceedings issue: 34th International Colloquium on Group Theoretical Methods in Physics (GROUP2022)
Ontological classification
Academic field: Physics
Specialties:
  • Mathematical Physics
Approach: Theoretical

Abstract

Almost immediately after the seminal papers of Poincaré (1905,1906) and Einstein (1905) on special relativity, wherein Poincaré established the full covariance of the Maxwell- Lorentz equations under the scale-extended Poincaré group and Einstein explained the Lorentz transformation using his assumption that the one-way speed of light in vacuo is constant and the same for all inertial observers (Einstein’s second postulate), attempts were made to get at the Lorentz transformations from basic properties of space and time but avoiding Einstein’s second postulate. Various such approaches usually involve general consequences of the relativity principle, such as a group structure to the set of all admissible inertial transformations and also assumptions about causality and/or homogeneity of space-time combined with isotropy of space. The first such attempt is usually attributed to von Ignatowsky in 1911. It was followed shortly thereafter by a paper of Frank and Rothe published in the same year. Since then, papers have continued to be written on the subject even up to the present. We elaborate on some of the results of such papers paying special attention to a 1968 paper of Bacri and Lévy-Leblond where possible kinematical groups include the de Sitter and anti-de Sitter groups and lead to special relativity in de Sitter and anti-de Sitter spaces.

Published as SciPost Phys. Proc. 14, 037 (2023)


Reports on this Submission

Report #2 by Anonymous (Referee 1) on 2023-1-23 (Invited Report)

Strengths

The author considers the important question to obtain the Lorentz transformations from basic properties of space and time but avoiding Einstein’s second postulate

Report

The journal's criteria are met.

  • validity: high
  • significance: high
  • originality: high
  • clarity: high
  • formatting: excellent
  • grammar: excellent

Report #1 by Anonymous (Referee 2) on 2023-1-23 (Invited Report)

Strengths

The author investigates the important question to obtain the Lorentz transformations from basic properties of space and time but avoiding Einstein’s second postulate.

Report

The journal acceptance criteria are met.

  • validity: high
  • significance: high
  • originality: high
  • clarity: high
  • formatting: excellent
  • grammar: excellent

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