Clausen's theorem and hypergeometric functions over finite fields
Clausen's theorem and hypergeometric functions over finite fields
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有限域上的克劳森定理和超几何函数
DOI:
10.1016/j.ffa.2008.09.001
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
John Greene
中科院分区:
文献类型:
--
作者:
R. Evans;John Greene
We prove a general identity for a F23 hypergeometric function over a finite field Fq, where q is a power of an odd prime. A special case of this identity was proved by Greene and Stanton in 1986. As an application, we prove a finite field analogue of Clausen's theorem expressing a F23 as the square of a F12. As another application, we evaluate an infinite family of F23(z) over Fqat z=−1/8. This extends a result of Ono, who evaluated one of these F23(−1/8) in 1998, using elliptic curves.