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

If A is some nonsquare matrix that is possible rank-deficient, then am I right to understand that (A^T)(A) is a positive semidefinite matrix? Does there exist an inverse (A^T A)^-1?

Thanks for any help

**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!

# Inverse of a positive semi-definite matrix?

Loading...

Similar Threads - Inverse positive semi | Date |
---|---|

I Question about inverse operators differential operators | Feb 9, 2018 |

I How do I know if a matrix is positive definite? | Jul 31, 2017 |

A 4th order tensor inverse and double dot product computation | May 10, 2017 |

A Inversion of Division of Bessel Functions in Laplace Domain? | Feb 15, 2017 |

I Proving an inverse of a groupoid is unique | Jan 1, 2017 |

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