
Re: can someone point me to the proof that
Posted:
Jul 21, 2013 5:43 PM


lax.clarke@gmail.com wrote in news:f6288bc3b3b445bb94252a70f2cea066 @googlegroups.com:
> no two polynomials are the same function over finite fields
I think you mean _infinite_ fields. In which case you can use functional methods. If the two polynomials give the same function, then plug 0 in for X to see that their constant terms are the same. Then take (formal) derivatives and plug in 0 again to see that the firstorder coefficients are the same, etc.
B.

