1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Permutation matrices

  1. Sep 12, 2006 #1
    I can't proove why P inverse = P transpose always!
    P is the permuation matrix, i.e. a matrix is identity but the rows can be interchanged.
    Thanks in advance.
  2. jcsd
  3. Sep 13, 2006 #2

    matt grime

    User Avatar
    Science Advisor
    Homework Helper

    I can offer no other advice than that you should just write down PP^t (the rows of P are an ******* basis of R^n - fill in the *******).
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Permutation matrices Date
[Discrete 2] Permutation/Combination Question Feb 13, 2018
Multiplying permutation cycles Sep 1, 2017
Permutation Matrices Apr 3, 2013
Space spanned by all 5x5 permutation matrices Aug 7, 2010
Permutable matrices Oct 3, 2006