Number Theory Seminar
Date: January 31, 2018
Time: 1:15PM - 2:15PM
Location: BLOC 220
Speaker: Andrew Bridy, Texas A&M University
Title: The cycle structure of unicritical polynomials in finite fields
Abstract: Let f(x) = x^k+a in Z[x] for k \geq 2. Consider the family of dynamical systems given by the action of f on F_p as p varies among primes. The question of how and in what sense this family approximates a random family of dynamical systems has been studied extensively, motivated in part by Pollard's "rho" algorithm for integer factorization. We show that for most choices of a, the cycle structure in this family is "as random as possible" in an appropriate sense. As a corollary, we show that most members of these families have many cycles. This is joint work with Derek Garton.
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