Polynomial functions over finite commutative rings

被引:4
|
作者
Bulyovszky, Balazs [1 ]
Horvath, Gabor [1 ]
机构
[1] Univ Debrecen, Inst Math, Pf 400, H-4002 Debrecen, Hungary
关键词
Polynomial functions; Local rings; Interpolation;
D O I
10.1016/j.tcs.2017.09.002
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We prove a necessary and sufficient condition for a function being a polynomial function over a finite, commutative, unital ring. Further, we give an algorithm running in quasilinear time that determines whether or not a function given by its function table can be represented by a polynomial, and if the answer is yes then it provides one such polynomial. (C) 2017 Elsevier B.V. All rights reserved.
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页码:76 / 86
页数:11
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