MathDB
Polynomial FE

Source: MEMO 2017 T1

August 25, 2017
algebrapolynomial

Problem Statement

Determine all pairs of polynomials (P,Q)(P, Q) with real coefficients satisfying P(x+Q(y))=Q(x+P(y))P(x + Q(y)) = Q(x + P(y)) for all real numbers xx and yy.