Carlitz-Wan conjecture for permutation polynomials and Weil bound for curves over finite fields

The authors requested a withdrawal of this article shortly after it first appeared in press in 2014. Unfortunately, the withdrawal was implemented as a retraction instead by the publisher and an earlier version of this notice contained allegations in relation to the article that, following further editorial consideration, the journal has found to be incorrect. The Publisher apologizes to the authors and has now re-published the article with minor changes at https://doi.org/10.1016/j.ffa.2018.07.006.

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