View Single Post
Old 2015-09-18, 12:54   #3
R.D. Silverman
R.D. Silverman's Avatar
Nov 2003

26×113 Posts

Originally Posted by R.D. Silverman View Post
One may find a lot of useful information in:
I should have added (from elementary algebraic number theory) that f(x) will be
divisible by p for some x if

(1) p divides the discriminant and
(2) the polynomial is not constant mod p.

Such primes p ramify.
R.D. Silverman is offline   Reply With Quote