Circle problem;
Bessel functions;
Riesz sums;
Weighted divisor sums;
Dirichlet L-series;
Ramanujan's Lost Notebook;
IDENTITIES;
D O I:
10.1007/s11139-011-9352-8
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
One fragment (p. 335) published with Ramanujan's Lost Notebook contains two formulas, each involving a finite trigonometric sum and a doubly infinite series of Bessel functions. The identities are connected with the classical circle and divisor problems, respectively. This paper is devoted to the first identity. First, we obtain a generalization in the setting of Riesz sums. Second, we prove a trigonometric analogue.