Skip to main content
Log in

On the distribution of rank and crank statistics for integer partitions

  • Research
  • Published:
Research in Number Theory Aims and scope Submit manuscript

Abstract

Let k be a positive integer and m be an integer. Garvan’s k-rank \(N_k(n,m)\) is the number of partitions of n into at least \((k-1)\) successive Durfee squares with k-rank equal to m. In this paper we give some asymptotics for \(N_k(n,m)\) with \(|m|\ge \sqrt{n}\) as \(n\rightarrow \infty .\) As a corollary, we give a more complete answer for the Dyson’s crank distribution conjecture. We also establish some asymptotic formulas for finite differences of \(N_k(n,m)\) with respect to m with \(m\gg \sqrt{n}\log n.\)

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Notes

  1. In [8], the O-term of (1.1) is \(O(|m|^{1/3}n^{-1/4}),\) the case of \(m=0\) was missed.

  2. Note that the range of m in which (1.4) holds is \(n^{1/2}\ll |m|= o(n^{3/4})\) rather that \(n^{1/2}\ll |m|\ll n^{3/4}\) as stated in [11, Theorem 1.2].

References

  1. Dyson, F.J.: Some guesses in the theory of partitions. Eureka 8, 10–15 (1944)

    MathSciNet  Google Scholar 

  2. Andrews, G.E., Garvan, F.G.: Dyson’s crank of a partition. Bull. Am. Math. Soc. (N.S.) 18(2), 167–171 (1988)

    Article  MathSciNet  Google Scholar 

  3. Garvan, F.G.: New combinatorial interpretations of Ramanujan’s partition congruences mod \(5,7\) and \(11\). Trans. Am. Math. Soc. 305(1), 47–77 (1988)

    MathSciNet  MATH  Google Scholar 

  4. Dyson, F.J.: Mappings and symmetries of partitions. J. Comb. Theory A 51(2), 169–180 (1989)

    Article  MathSciNet  Google Scholar 

  5. Mao, R.: Asymptotic inequalities for \(k\)-ranks and their cumulation functions. J. Math. Anal. Appl. 409(2), 729–741 (2014)

    Article  MathSciNet  Google Scholar 

  6. Bringmann, K., Manschot, J.: Asymptotic formulas for coefficients of inverse theta functions. Commun. Number Theory Phys. 7(3), 497–513 (2013)

    Article  MathSciNet  Google Scholar 

  7. Kim, B., Kim, E., Seo, J.: Asymptotics for \(q\)-expansions involving partial theta functions. Discrete Math. 338(2), 180–189 (2015)

    Article  MathSciNet  Google Scholar 

  8. Bringmann, K., Dousse, J.: On Dyson’s crank conjecture and the uniform asymptotic behavior of certain inverse theta functions. Trans. Am. Math. Soc. 368(5), 3141–3155 (2016)

    Article  MathSciNet  Google Scholar 

  9. Garvan, F.G.: Generalizations of Dyson’s rank and non-Rogers–Ramanujan partitions. Manuscr. Math. 84(3–4), 343–359 (1994)

    Article  MathSciNet  Google Scholar 

  10. Dousse, J., Mertens, M.H.: Asymptotic formulae for partition ranks. Acta Arith. 168(1), 83–100 (2015)

    Article  MathSciNet  Google Scholar 

  11. Parry, D., Rhoades, R.C.: On Dyson’s crank distribution conjecture and its generalizations. Proc. Am. Math. Soc. 145(1), 101–108 (2017)

    Article  MathSciNet  Google Scholar 

  12. Chan, S.H., Mao, R.: Inequalities for ranks of partitions and the first moment of ranks and cranks of partitions. Adv. Math. 258, 414–437 (2014)

    Article  MathSciNet  Google Scholar 

  13. Hardy, G.H., Ramanujan, S.: Asymptotic formulae in combinatory analysis. Proc. Lond. Math. Soc. 2(17), 75–115 (1918)

    Article  Google Scholar 

  14. Odlyzko, A.M.: Differences of the partition function. Acta Arith. 49(3), 237–254 (1988)

    Article  MathSciNet  Google Scholar 

Download references

Acknowledgements

The author would like to thank the anonymous referees for their very helpful comments and suggestions. The author also thank Professor Zhi-Guo Liu for his consistent encouragement.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Nian Hong Zhou.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhou, N.H. On the distribution of rank and crank statistics for integer partitions. Res. number theory 5, 18 (2019). https://doi.org/10.1007/s40993-019-0156-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s40993-019-0156-z

Keywords

Mathematics Subject Classification

Navigation