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Topic:
n square free) ^ ( d I n and u = v (mod d) --> f(u) = f(v) (mod d) ) --> (f is a polynomial over Z_n)
Replies:
2
Last Post:
Oct 16, 2009 3:37 PM
How can I show that for any squarefree n and function f from Z_n to Z_n that has the propery that- whenever d I n and u = v (mod d) then f (u) = f(v) (mod d) - must be a polynomial over Z_n ?