English

$k$th power residue chains of global fields

Number Theory 2010-01-21 v2

Abstract

In 1974, Vegh proved that if kk is a prime and mm a positive integer, there is an mm term permutation chain of kkth power residue for infinitely many primes [E.Vegh, kkth power residue chains, J.Number Theory, 9(1977), 179-181]. In fact, his proof showed that 1,2,22,...,2m11,2,2^2,...,2^{m-1} is an mm term permutation chain of kkth power residue for infinitely many primes. In this paper, we prove that for any "possible" mm term sequence r1,r2,...,rmr_1,r_2,...,r_m, there are infinitely many primes pp making it an mm term permutation chain of kkth power residue modulo pp, where kk is an arbitrary positive integer [See Theorem 1.2]. From our result, we see that Vegh's theorem holds for any positive integer kk, not only for prime numbers. In fact, we prove our result in more generality where the integer ring Z\Z is replaced by any SS-integer ring of global fields (i.e. algebraic number fields or algebraic function fields over finite fields).

Keywords

Cite

@article{arxiv.0907.3066,
  title  = {$k$th power residue chains of global fields},
  author = {Su Hu and Yan Li},
  journal= {arXiv preprint arXiv:0907.3066},
  year   = {2010}
}

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4 pages