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pow:problem2f20
Problem 2 (due Monday, September 28)
Let $\mathbb N_0$ be the set $\{0,1,2,\ldots\}$ of all non-negative integers. Find all functions $f:\mathbb N_0
\longrightarrow \mathbb N_0$ such that $f(a^2+b^2)=f(a)^2+f(b)^2$ for all $a,b$ in $\mathbb N_0$.
No complete solution was received. Partial solutions submitted by Yuqiao Huang, Maxwell T Meyers, and Matthew Pressimone. Detailed solution is discussed in the following link Solution
pow/problem2f20.txt · Last modified: 2020/10/01 00:16 by mazur