Desingularization and p-Curvature of Recurrence Operators
Desingularization and p-Curvature of Recurrence Operators
复制标题
递归算子的去奇异化和 p 曲率
DOI:
10.1145/3476446.3535478
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
van Hoeij, Mark
中科院分区:
文献类型:
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作者:
Zhou, Yi;van Hoeij, Mark
Linear recurrence operators in characteristic p are classified by their p-curvature. For a recurrence operator L, denote by χ(L) the characteristic polynomial of its p-curvature. We can obtain information about the factorization of L by factoring χ(L). The main theorem of this paper gives an unexpected relation between χ(L) and the true singularities of L. An application is to speed up a fast algorithm for computing χ(L) by desingularizing L first. Another contribution of this paper is faster desingularization.
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DOI:
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发表时间:
2015
期刊:
International Symposium on Symbolic and Algebraic Computation
影响因子:
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DOI:
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DOI:
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DOI:
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