Let f(x) be a fixed integer polynomial, and let m be a fixed positive integer. Denote the number of solutions to f(x) = k (mod m) by N(k). Prove that m-1 ΣN (k) = k=0 = m.
Let f(x) be a fixed integer polynomial, and let m be a fixed positive integer. Denote the number of solutions to f(x) = k (mod m) by N(k). Prove that m-1 ΣN (k) = k=0 = m.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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[Algebraic Cryptography] How do you solve this?
Given hint: Let S(k) = {solutions to f(x) = (congruent to) k (mod m) in Z/mZ} where Z is the set of integers

Transcribed Image Text:Let f(x) be a fixed integer polynomial, and let m be a fixed positive integer. Denote the number of solutions to
f(x) = k (mod m) by N(k). Prove that
m-1
ΣN (k) =
k=0
= m.
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