Sparse difference resultant
Sparse difference resultant
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稀疏差异结果
DOI:
10.1145/2465506.2465509
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发表时间:
2012-12
影响因子:
0.7
通讯作者:
Xiao-Shan Gao
中科院分区:
文献类型:
--
作者:
Wei Li;Chun-Ming Yuan;Xiao-Shan Gao
In this paper, the concept of sparse difference resultant for a Laurent transformally essential system of Laurent difference polynomials is introduced and its properties are proved. In particular, order and degree bounds for the sparse difference resultant are given. Based on these bounds, an algorithm to compute the sparse difference resultant is proposed, which is single exponential in terms of the number of variables, the Jacobi number, and the size of the system. Also, the precise order, degree, a determinant representation, and a Poisson-type product formula for the difference resultant are given.
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