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Characterizations of the $d$th-power residue matrices over finite fields

Number Theory 2018-09-28 v1

Abstract

In a recent paper of the author with D. Dummit and H. Kisilevsky, we constructed a collection of matrices defined by quadratic residue symbols, termed "quadratic residue matrices", associated to the splitting behavior of prime ideals in a composite of quadratic extensions of Q\mathbb{Q}, and proved a simple criterion characterizing such matrices. We then analyzed the analogous classes of matrices constructed from the cubic and quartic residue symbols for a set of prime ideals of Q(3)\mathbb{Q}(\sqrt{-3}) and Q(i)\mathbb{Q}(i), respectively. In this paper, the goal is to construct and study the finite-field analogues of these residue matrices, the "ddth-power residue matrices", using the general ddth-power residue symbol over a finite field.

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Cite

@article{arxiv.1809.10225,
  title  = {Characterizations of the $d$th-power residue matrices over finite fields},
  author = {Evan P. Dummit},
  journal= {arXiv preprint arXiv:1809.10225},
  year   = {2018}
}

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4 pages