Lorentzian和Riemann-Cartan时空中的定域惯性参考系
Locally Inertial Reference Frames in Lorentzian and Riemann-Cartan Spacetimes
摘要：
在本文中，我们仔细研究的概念，局部惯性参考系（LIRF）在洛伦兹和黎曼-嘉当时空结构。我们为这些对象提供了严格的数学定义，这需要初步在观察者、参考系、给定参考系的自然适应坐标函数的概念之间进行明确的数学区分，以及哪些属性可以表征洛伦兹和Riemann-Cartan结构中的惯性参考系（如果有的话）。我们希望能够澄清一些与文献中出现的LIRF概念相关的最终模糊问题，特别是洛伦兹时空和黎曼-嘉当时空中的LIRF与爱因斯坦最快乐的想法之间的关系，即，等价原则。
英文摘要：
In this paper we scrutinize the concept of locally inertial reference frames (LIRF) in Lorentzian and Riemann-Cartan spacetime structures. We present rigorous mathematical definitions for those objects, something that needs preliminary a clear mathematical distinction between the concepts of observers, reference frames, naturally adapted coordinate functions to a given reference frame and which properties may characterize an inertial reference frame (if any) in the Lorentzian and Riemann-Cartan structures. We hope to have clarified some eventual obscure issues associated to the concept of LIRF appearing in the literature, in particular the relationship between LIRFs in Lorentzian and Riemann-Cartan spacetimes and Einstein's most happy though, i.e., the equivalence principle.
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