ON THE D.H.LEHMER PROBLEM
ON THE D.H.LEHMER PROBLEM
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DOI:
10.1360/sb1992-37-21-1765
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发表时间:
1992-11
影响因子:
--
通讯作者:
张文鹏
中科院分区:
文献类型:
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作者:
张文鹏
Ⅰ. INTRODUCTION For each x(0<x<p) where p is an odd prime, we define (?) by (?)x ≡1 (mod p) and0<(?)<p. Let r(p)be the number of cases in which x and x are of opposite parity, e. g. forp=13, (x,x)=(1, 1),(2, 7), (3,9), (4, 10), (5, 8), (6, 11), (12, 12), so r(13)=6. D.H. Lehmer wanted to find r(p) or at least to say something nontrivial about it. r(p)≡2 or 0 (mod 4) accordingas p≡±1 (mod 4). r(3)=r(7)=0;r(5)=2;r(11)=