In my, er, studies I've encountered descriptions of what I understand to be various ways to go from global to local coordinates. These are: tetrads, Riemann Normal Coordinates and Fermi Normal coordinates. Until now I haven't investigated much further than that, mostly because I've not been able to really see where I would want to chose any one over the others.(adsbygoogle = window.adsbygoogle || []).push({});

I am reasonably OK with getting orthonormal tetrads from a metric, but even then I'm not really sure where to go next. I only understand RNC as some kind of local polar-ish coordinate sytem, and I have only really been alerted to FNC via a recent comment by pervect on a thread here.

Anyway, the question is: Is there a reasonably snappy way of describing what sort of problems or applications each technique is most suited to?

**Physics Forums - The Fusion of Science and Community**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Which local coordinates?

Loading...

Similar Threads - local coordinates | Date |
---|---|

I Transforming to local inertial coordinates | Feb 22, 2018 |

I Determination of locally inertial coordinates | Apr 3, 2016 |

A Riemannian Manifolds and Local Cartesian Coordinates | Mar 13, 2016 |

Transformation to locally flat coordinates | Feb 13, 2016 |

Local c in Sc coordinates. | Nov 12, 2012 |

**Physics Forums - The Fusion of Science and Community**