Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Non commutative ring

  1. Oct 9, 2005 #1
    can anyone give me examples of:

    1.finite non-commutative ring with identity
    2.finite non-commutative ring without identity
  2. jcsd
  3. Oct 9, 2005 #2
    1. Set of all nxn matrices over F_p for some p, with respect to normal + and * (for n>1).

    2. I think you should be able to find some subring of (1) that will do. I'll let you toy with it.
    I'd try setting an n, and maybe also a p, if I were you.
  4. Oct 9, 2005 #3

    Tom Mattson

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member


    You already have a version of this thread which has been relocated to the Homework Help section of this site. If you want to receive help on questions such as these, you should post there and before that read the sticky at the top of that Forum.

    Last edited: Oct 9, 2005
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook