values of coefficients of cyclotomic polynomials开题资料.pdf
Discrete Mathematics 308 (2008) 5860–5863
Note Values of coefficients of cyclotomic polynomials Chun-Gang Jia, Wei-Ping Lib a Department of Mathematics, Nanjing Normal University, Nanjing 210097, PR China b Rugao Normal College, Rugao 226500, Jiangsu, PR China Received 31 May 2007; received in revised form 8 October 2007; accepted 17 October 2007 Available online 26 November 2007 Abstract Let a(k, n) be the k-th coefficient of the n-th cyclotomic polynomials. In 1987, J. Suzuki proved that {a(k, n) | n, k ∈ N} = Z. In this paper, we improve this result and prove that for any prime p and any integer l ≥ 1, we have {a(k, pl n) | n, k ∈ N} = Z. c 2007 Elsevier . All rights reserved. Keywords: Cyclotomic polynomials; Dirichlet’s theorem; Arithmetic progressions 1. Introduction The n-th cyclotomic polynomial is defined by Y j Φn(x) = (x − ζn ), 1≤ j≤n ( j, n)=1 where ζn is an n-th primitive roots of unity. We know that Φn(x) is an integer polynomial and an irreducible poly
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