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A new lower bound on the family complexity of Legendre sequences
Applicable Algebra in Engineering, Communication and Computing ( IF 0.6 ) Pub Date : 2020-06-22 , DOI: 10.1007/s00200-020-00442-y
Yağmur Çakıroğlu , Oğuz Yayla

In this paper we study a family of Legendre sequences and its pseudo-randomness in terms of their family complexity. We present an improved lower bound on the family complexity of a family based on the Legendre symbol of polynomials over a finite field. The new bound depends on the Lambert W function and the number of elements in a finite field belonging to its proper subfield. Moreover, we present another lower bound which is a simplified version and approximates the new bound. We show that both bounds are better than previously known ones.

中文翻译:

勒让德序列家族复杂度的新下界

在本文中,我们研究了勒让德序列族及其族复杂性的伪随机性。基于有限域上多项式的勒让德符号,我们提出了一个改进的家族复杂度下界。新边界取决于 Lambert W 函数和属于其适当子域的有限域中的元素数。此外,我们提出了另一个下界,它是一个简化版本并近似于新界。我们表明这两个边界都比以前已知的更好。
更新日期:2020-06-22
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