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arXiv 2004.03058cs.DMcs.ITmath.COmath.IT
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关于有限域上多项式分解的个数

On the Number of Factorizations of Polynomials over Finite Fields

Rachel N. Berman, Ron M. Roth

摘要:

受编码应用的启发,考虑了两个枚举问题:F = GF(q)上的m次多项式的不同因子的数量,以及多项式可以被写为F上至多n次的两个多项式的乘积的方式的数量。对于这两个问题,边界上的最大数量的因式分解,并提出了一个表征多项式达到最大。最后,表达式的平均值和方差的因子分解的数量,对于任何给定的m(分别为,n)。

英文摘要:

Motivated by coding applications,two enumeration problems are considered: the number of distinct divisors of a degree-m polynomial over F = GF(q), and the number of ways a polynomial can be written as a product of two polynomials of degree at most n over F. For the two problems, bounds are obtained on the maximum number of factorizations, and a characterization is presented for polynomials attaining that maximum. Finally, expressions are presented for the average and the variance of the number of factorizations, for any given m (respectively, n).

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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