On an asymptotic formula of Srinivasa Ramanujan
On an asymptotic formula of Srinivasa Ramanujan
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DOI:
10.4064/aa109-4-5
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发表时间:
2003
期刊:
影响因子:
0.7
通讯作者:
K. Ramachandra;A. Sankaranarayanan
中科院分区:
文献类型:
--
作者:
K. Ramachandra;A. Sankaranarayanan
Also he records (without proof) the result that on the assumption of the Riemann hypothesis, the error term in (1.1) can be improved to O(n1/2+ε). In view of a method due to H. L. Montgomery and R. C. Vaughan (see [9]), it is very likely that the error term is O(n1/2). We propose this as a conjecture (see also [15], [17]). Unconditionally, the error term related to d2(j) is known to be O(n1/2+ε) for any positive constant ε (see for example the equation (14.30) of [6] and also [5]). Professor A. Schinzel has already considered some of the problems of Ramanujan (see [19]), namely for the arithmetic function r2(n), and he has proved that the corresponding error term is Ω(n3/8) and also the corresponding error term is O(n1/2(logn)8/3(log logn)1/3) due to an unpublished work of W. G. Nowak (see also [8] and [18]). Let