
In this note, we study the divisibility relation $U_m\mid U_{n+k}^s-U_n^s$, where ${\bf U}:=\{U_n\}_{n\ge 0}$ is the Lucas sequence of characteristic polynomial $x^2-ax\pm 1$ and $k,m,n,s$ are positive integers.
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roots of unity, Mathematics - Number Theory, FOS: Mathematics, 11B39, Number Theory (math.NT), Lucas sequence
roots of unity, Mathematics - Number Theory, FOS: Mathematics, 11B39, Number Theory (math.NT), Lucas sequence
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