- #1
gonzo
- 277
- 0
Is there a simple method for finding all the units in a polynomial quotient ring over a finite field? For example:
[tex]
{F_2[x] \over x^7-1}
[/tex]
I can see the easy ones like 1, and all power of x, but I wanted a general rule or method for finding all of them if it exists (besides testing each individually, which can get tedious for big rings).
Thanks.
[tex]
{F_2[x] \over x^7-1}
[/tex]
I can see the easy ones like 1, and all power of x, but I wanted a general rule or method for finding all of them if it exists (besides testing each individually, which can get tedious for big rings).
Thanks.