Let $p$ a prime number and $N(p)$ the number of solution to $x^x \equiv 1$ (mod $p$) in $1\leq x \leq p$ . Prove that for sufficiently large $p$ there exist a constant $c < \frac{1}{2}$ such that $N(p) \leq p^c$
(Miklós Schweitzer 2010)
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Let $p$ a prime number and $N(p)$ the number of solution to $x^x \equiv 1$ (mod $p$) in $1\leq x \leq p$ . Prove that for sufficiently large $p$ there exist a constant $c < \frac{1}{2}$ such that $N(p) \leq p^c$ (Miklós Schweitzer 2010) |
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