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arXiv 1111.3507math.NTmath.CO
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等差数列中具有三个生成元的$\mathbb{U}_n$的三因子分解

Three-factor decompositions of $\mathbb{U}_n$ with the three generators in arithmetic progression

P. J. Cameron, D. A. Preece

摘要:

不论n是素数、指数>1的素数幂或合数,Z_n的单位群U_n有时可以作为由x,x+k和x+2k生成的循环群的直积得到,其中x,k在Z_n中。实际上,对于许多n值,存在许多不同的这种类型的3-因子分解。这种分解存在的情况下进行检查。许多分解还有其他有趣的性质。我们还简要地看一下分解的乘法群的有限域。

英文摘要:

Irrespective of whether n is prime, prime power with exponent >1, or composite, the group U_n of units of Z_n can sometimes be obtained as the direct product of cyclic groups generated by x, x+k and x+2k, for x, k in Z_n. Indeed, for many values of n, many distinct 3-factor decompositions of this type exist. The circumstances in which such decompositions exist are examined. Many decompositions have additional interesting properties. We also look briefly at decompositions of the multiplicative groups of finite fields.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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