I should calculate the limit of the following fraction(adsbygoogle = window.adsbygoogle || []).push({});

[tex] \dfrac{- (pq) p^{2}}{-pq \pm \sqrt{(pq)^{2} - p^{2} q^{2}}} [/tex].

with q --> 0, but I don't know how to do that.

p and q are two four-vectors, so we have: [tex] pq = p_{\mu} q^{\mu} [/tex] and so on.

Does anyone have an idea? Or at least: Is it somehow possible to "simplify" or rewrite the expression in the limit q --> 0 ?

**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!

# Problem with four vectors

Loading...

Similar Threads - Problem four vectors | Date |
---|---|

I Why Is a Violation of Causality a Problem? | Jan 17, 2018 |

I Simple Velocity Relativity Problem | Dec 20, 2017 |

A Simulator software for vacuum boundary value problem | Nov 5, 2017 |

B Numerical solution to GRT problems? | May 7, 2017 |

Four-vector problem | Mar 8, 2012 |

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