Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-11T00:26:44.396Z Has data issue: false hasContentIssue false

On the divisor function d(n)

Published online by Cambridge University Press:  26 February 2010

Jiahai Kan
Affiliation:
Nanjing Institute of Posts and Telecommunications, 210003 Nanjing, Nanjing, China.
Zun Shan
Affiliation:
Department of MathematicsNanjing Normal University, 210097 Nanjing, Nanjing, China.
Get access

Extract

In 1984 Heath-Brown [5] proved the following conjecture of Erdős and Mirsky [2] (which seemed at one time as hard as the twin prime problem):

“There exist infinitely many integers n for which d(n) = d(n + 1).”

MSC classification

Type
Research Article
Copyright
Copyright © University College London 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Chen, J.. On the representation of a large even integer as the sum of a prime and the product of at most two primes. Sai. Sinica, 16 (1973). 157176.Google Scholar
2.Erdos, P. and Mirsky, L.. The distribution of the values of the divisor function d(n). Proc. LMS (3), 2 (1952), 257271.Google Scholar
3.Erdös, P., Pomerance, C. and Sárközy, A.. On locally repeated values of certain arithmetic functions. II. Acta Math. Hung., 49 (1987), 251259.CrossRefGoogle Scholar
4.Halberstam, H. and Richert, H.-E.. Sieve Methods (Academic Press, London, 1974).Google Scholar
5.Heath-Brown, D. R.. The divisor function at consecutive integers. Mathematika, 31 (1984), 141149.Google Scholar
6.Hildebrand, A.. The divisor function at consecutive integers. Pacif. J. Math. 129 (1987), 307319.CrossRefGoogle Scholar
7.Kan, J.. On the lower bound sieve. Malhematika, 37 (1990), 273286.CrossRefGoogle Scholar
8. J. Kan. On the number of solutions of Np = P r. J. reine und angew. Math., 414 (1991), 117130.Google Scholar