Ramanujan's Sums and Cyclotomic Polynomials
Ramanujan's Sums and Cyclotomic Polynomials
复制标题
拉马努金的和与分圆多项式
DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
K. Motose
中科院分区:
文献类型:
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作者:
K. Motose
This paper consists of three parts. First, we shall show that some formulas about Ramanujan’s sum and cyclotomic polynomials are equivalent to the definition of cyclotomic polynomials. Next, we shall show also that cyclotomic polynomials are strictly increasing for x ≥ 32 . The last part is to show that values of some classical series are equivalent to first three coefficients of s in the inverse 1 ζ(s+1) of the zeta function. Let Γn be the cyclic group of n th roots of unity in the complex number field C and let ∆n be the set of primitive n th roots of unity. Then we have Γn = {ζ n |0 ≤ k ≤ n − 1} and ∆n = {ζ n | (k, n) = 1, 1 ≤ k ≤ n} where ζn = e 2πi n and (k, n) is the greatest common divisor of k and n. Classifying elements of Γn by the orders, Γn is the disjoint union of subsets ∆d with d|n, namely, Γn = ∪