Hi everyone!(adsbygoogle = window.adsbygoogle || []).push({});

There is something that I would like to ask you. Suppose you have

[tex]\frac{1}{\sqrt{-g}} \frac{\delta (\sqrt{-g} (g^{ab} u_a u_b + 1))}{\delta g^{cd}}[/tex]

The outcome of this would be ##u_{c}u_{d}## or ##-u_{c} u_{d}## ?

I am really confused.

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

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

# Variation with respect to the metric!

Loading...

Similar Threads - Variation respect metric | Date |
---|---|

A Variation of scalar field action | Jan 21, 2018 |

A Derive the Bianchi identities from a variational principle? | Oct 5, 2017 |

I Variation of perfect fluid and Lie derivative | Jun 12, 2017 |

I Integral of the momentum (with respect to time) | Jan 4, 2017 |

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