Semisimple rings with a unique maximal ideals

  • Thread starter Thread starter mahler1
  • Start date Start date
  • Tags Tags
    modules rings
mahler1
Messages
217
Reaction score
0

Homework Statement


Determine all semisimple rings with a unique maximal ideal.

The Attempt at a Solution



If I call ##I## to the unique maximal ideal of ##R##, then ##I## can be seen as a simple ##R##-submodule, by hypothesis, there exists ##I' \subset R##, ##R-##submodule such that ##R=I \bigoplus I'##. I got stuck at this point, any suggestions would be appreciated.[/B]
 
Physics news on Phys.org
Thanks for the post! Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
Back
Top