Improving the Berlekamp Algorithm for Binomials x n - a
Improving the Berlekamp Algorithm for Binomials x n - a
复制标题
改进二项式的 Berlekamp 算法 x n - a
DOI:
10.1007/978-3-642-31662-3_16
复制
发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Aichi Kudo
中科院分区:
文献类型:
--
作者:
Ryuichi Harasawa;Yutaka Sueyoshi;Aichi Kudo
In this paper, we describe an improvement of the Berlekamp algorithm, a method for factoring univariate polynomials over finite fields, for binomialsxn−aover finite fields. More precisely, we give a deterministic algorithm for solving the equationdirectly without applying the sweeping-out method to the corresponding coefficient matrix. We show that the factorization of binomials using the proposed method is performed inoperations inif we apply a probabilistic version of the Berlekamp algorithm after the first step in which we propose an improvement. Our method is asymptotically faster than known methods in certain areas ofq,nand as fast as them in other areas.