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We consider the symmetrized moments of three ranks and cranks, similar to the work of Garvan for the rank and crank of a partition. By using Bailey pairs and elementary rearrangements, we are able to find useful expressions for these…

Number Theory · Mathematics 2014-12-12 Chris Jennings-Shaffer

We generalize a result of Garvan on inequalities and interpretations of the moments of the partition rank and crank functions. In particular for nearly 30 Bailey pairs, we introduce a rank-like function, establish inequalities with the…

Number Theory · Mathematics 2016-10-13 Catherine Babecki , Chris Jennings-Shaffer , Geoffrey Sangston

We give a new generalization of the spt-function of G.E. Andrews, namely $\textup{Spt}_j(n)$, and give its combinatorial interpretation in terms of successive lower-Durfee squares. We then generalize the higher order spt-function…

Number Theory · Mathematics 2012-03-28 Atul Dixit , Ae Ja Yee

We continue to investigate spt-type functions that arise from Bailey pairs. In this third paper on the subject, we proceed to introduce additional spt-type functions. We prove simple Ramanujan type congruences for these functions which can…

Number Theory · Mathematics 2015-12-23 Chris Jennings-Shaffer

Andrews, Chan, and Kim recently introduced a modified definition of crank and rank moments for integer partitions that allows the study of both even and odd moments. In this paper, we prove the asymptotic behavior of these moments in all…

Number Theory · Mathematics 2012-05-11 Kathrin Bringmann , Karl Mahlburg

In this paper we find the smallest part function related to the $4$-th symmetrized crank function, corresponding to the one obtained in Patkowski [11] for the $4$-th symmetrized rank function. This provides us with a direct relationship…

Number Theory · Mathematics 2025-11-11 Alexander E. Patkowski

The spt-function $spt(n)$ was introduced by Andrews as the weighted counting of partitions of $n$ with respect to the number of occurrences of the smallest part. Andrews, Garvan and Liang defined the spt-crank of an $S$-partition which…

Combinatorics · Mathematics 2013-08-15 William Y. C. Chen , Kathy Q. Ji , Wenston J. T. Zang

We introduce several spt-type functions that arise from Bailey pairs. We prove simple Ramanujan type congruences for these functions which can be explained by a spt-crank-type function. The spt-crank-type functions are constructed by adding…

Number Theory · Mathematics 2014-11-14 Chris Jennings-Shaffer

Moments of the partition rank and crank statistics have been studied for their connections to combinatorial objects such as Durfee symbols, as well as for their connections to harmonic Maass forms. This paper proves a conjecture due to…

Number Theory · Mathematics 2014-02-26 K. Bringmann , K. Mahlburg , R. Rhoades

In this paper we obtain asymptotic formulas for the positive crank and rank moments for overpartitions. Moreover, we show that crank and rank moments are asymptotically equal while the difference is asymptotically positive. This indicates…

Number Theory · Mathematics 2014-03-27 Jose Miguel Zapata Rolon

This paper presents the methods to utilizing the $s$-fold extension of Bailey's lemma to obtain $spt$-type functions related to the symmetrized rank function $\eta_{2k}(n).$ We provide the $k=2$ example, but clearly illustrate how deep…

Number Theory · Mathematics 2018-08-13 Alexander E Patkowski

Bringmann, Lovejoy, and Osburn showed that the generating functions of the spt-overpartition functions spt(n), spt1(n), spt2(n), and M2spt(n) are quasimock theta functions, and satisfy a number of simple Ramanujan-like congruences. Andrews,…

Number Theory · Mathematics 2014-12-12 Frank Garvan , Chris Jennings-Shaffer

We investigate spt-crank-type functions arising from Bailey pairs. We recall four spt-type functions corresponding to the Bailey pairs $A1$, $A3$, $A5$, and $A7$ of Slater and given four new spt-type functions corresponding to Bailey pairs…

Number Theory · Mathematics 2016-07-08 Frank Garvan , Chris Jennings-Shaffer

We obtain a finite analogue of a recent generalization of an identity in Ramanujan's Notebooks. Differentiating it with respect to one of the parameters leads to a result whose limiting case gives a finite analogue of Andrews' famous…

Number Theory · Mathematics 2018-12-05 Atul Dixit , Pramod Eyyunni , Bibekananda Maji , Garima Sood

In this note, we offer some relations and congruences for an interesting $spt$-type function.

Number Theory · Mathematics 2015-07-16 Alexander E Patkowski

The spt-function spt($n$) was introduced by Andrews as the weighted counting of partitions of $n$ with respect to the number of occurrences of the smallest part. In this survey, we summarize recent developments in the study of spt($n$),…

Combinatorics · Mathematics 2017-07-17 William Y. C. Chen

We study two types of crank moments and two types of rank moments for overpartitions. We show that the crank moments and their derivatives, along with certain linear combinations of the rank moments and their derivatives, can be written in…

Number Theory · Mathematics 2021-02-03 Kathrin Bringmann , Jeremy Lovejoy , Robert Osburn

Let spt(n) denote the total number of appearances of smallest parts in the partitions of n. Recently, Andrews showed how spt(n) is related to the second rank moment, and proved some surprising Ramanujan-type congruences mod 5, 7 and 13. We…

Number Theory · Mathematics 2008-06-11 F. G. Garvan

Two analogues of the crank function are defined for overpartitions -- the first residual crank and the second residual crank. This suggests an exploration of crank functions defined for overpartitions whose parts are divisible by an…

Number Theory · Mathematics 2019-12-13 Ali H. Al-Saedi , Thomas Morrill , Holly Swisher

Andrews, Lewis and Lovejoy introduced the partition function $PD(n)$ as the number of partitions of $n$ with designated summands. A bipartition of $n$ is an ordered pair of partitions $(\pi_1, \pi_2)$ with the sum of all of the parts being…

Combinatorics · Mathematics 2021-02-26 R. X. J. Hao , E. Y. Y. Shen
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