Small gaps between products of two primes

被引:24
作者
Goldston, D. A. [1 ]
Graham, S. W. [2 ]
Pintz, J. [3 ]
Yildirim, C. Y. [4 ,5 ]
机构
[1] San Jose State Univ, Dept Math, San Jose, CA 95192 USA
[2] Cent Michigan Univ, Dept Math, Mt Pleasant, MI 48859 USA
[3] Hungarian Acad Sci, Renyi Math Inst, H-1364 Budapest, Hungary
[4] Bogazici Univ, Dept Math, TR-34342 Istanbul, Turkey
[5] Feza Gursey Enstitusu, TR-81220 Istanbul, Turkey
关键词
NUMBER; THEOREM;
D O I
10.1112/plms/pdn046
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let q(n) denote the nth number that is a product of exactly two distinct primes. We prove that q(n+1) - q(n) <= 6 infinitely often. This sharpens an earlier result of the authors, which had 26 in place of 6. More generally, we prove that if nu is any positive integer, then (q(n+nu) - q(n)) <= nu e(nu - gamma) (1+o(1)) infinitely often. We also prove several other related results on the representation of numbers with exactly two prime factors by linear forms.
引用
收藏
页码:741 / 774
页数:34
相关论文
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