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Related papers: k-Run Overpartitions and Mock Theta Functions

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Recently, Andrews, Dixit and Yee defined two partition functions $p_{\omega}(n)$ and $p_{\nu}(n)$ that are related with Ramanujan's mock theta functions $\omega(q)$ and $\nu(q)$, respectively. In this paper, we present two variable…

Number Theory · Mathematics 2017-09-12 George E Andrews , Ae Ja Yee

An overpartition is a partition such that the first occurrence (equivalently, the last occurrence) of a number may be overlined. In this article, we investigate three contents of overpartitions. We first consider the $r$-chain minimal and…

Combinatorics · Mathematics 2026-01-29 Y. H. Chen , Y. Q. Chen , Thomas Y. He , H. X. Huang , X. Zhang

We prove formulas for generalized rank deviations for overpartitions. These formulas are in terms of Appell-Lerch series and sums of quotients of theta functions and extend work of Lovejoy and the second author. As an application, we…

Number Theory · Mathematics 2025-11-21 Kevin Allen , Robert Osburn , Matthias Storzer

Andrews-Dyson-Hickerson, Cohen build a striking relation between q-hypergeometric series, real quadratic fields, and Maass forms. Thanks to the works of Lewis-Zagier and Zwegers we have a complete understanding on the part of these…

Number Theory · Mathematics 2025-02-28 Kathrin Bringmann , William Craig , Caner Nazaroglu

The study of partitions with parts separated by parity was initiated by Andrews in connection with Ramanujan's mock theta functions, and his variations on this theme have produced generating functions with a large variety of different…

Combinatorics · Mathematics 2024-03-04 Kathrin Bringmann , William Craig , Caner Nazaroglu

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

Kaur, Rana, and Eyyunni recently defined the mex sequence of a partition and established, by analytic methods, connections to two disparate types of partition-related objects. We make a bijection between partitions with certain mex…

Combinatorics · Mathematics 2025-05-29 Brian Hopkins , James A. Sellers

In this Ph.D. thesis, written under the direction of D.B. Zagier and R.W. Bruggeman, we study the mock theta functions, that were introduced by Ramanujan. We show how they can be interpreted in the theory of (real-analytic) modular forms.…

Number Theory · Mathematics 2008-07-31 Sander Zwegers

In this paper, we establish that the number of partitions of a natural number with positive odd rank is equal to the number of two-color partitions (red and blue), where the smallest part is even (say $2n$) and all red parts are even and…

Combinatorics · Mathematics 2025-01-14 George E. Andrews , Rahul Kumar

In this paper, the generating functions of Garvans so-called $k$-ranks are used, to define a family of mock Eisenstein series. The $k$-rank moments are then expressed as partition traces of these functions. We explore the modular properties…

Number Theory · Mathematics 2025-10-07 Kilian Rausch

In this paper, we obtain asymptotic formulas for $k$-crank of $k$-colored partitions. Let $M_k(a, c; n)$ denote the number of $k$-colored partitions of $n$ with a $k$-crank congruent to $a$ mod $c$. For the cases $k=2,3,4$, Fu and Tang…

Combinatorics · Mathematics 2023-04-14 Helen W. J. Zhang , Ying Zhong

In this paper, we find an identity which connects the overpartition function and the function of Rogers--Ramanujan--Gordon type overpartitions by considering the weights and gaps. This identity can be seen as an analogue of the weighted…

Combinatorics · Mathematics 2017-04-21 Jeremy J. F. Guo , Doris D. M. Sang , Diane Y. H. Shi

In this paper we compute asymptotics for the coefficients of an infinite class of overpartition rank generating functions. Using these results, we show that $ \overline{N}(a,c,n), $ the number of overpartitions of $ n $ with rank congruent…

Number Theory · Mathematics 2019-10-01 Alexandru Ciolan

We introduce a $q$-analog of the higher continued fractions introduced by the last three authors in a previous work (together with Gregg Musiker), which are simultaneously a generalization of the $q$-rational numbers of Morier-Genoud and…

Combinatorics · Mathematics 2024-08-14 Amanda Burcroff , Nicholas Ovenhouse , Ralf Schiffler , Sylvester W. Zhang

The elliptic genera of the K3 surfaces, both compact and non-compact cases, are studied by using the theory of mock theta functions. We decompose the elliptic genus in terms of the N=4 superconformal characters at level-1, and present an…

Mathematical Physics · Physics 2009-12-01 Tohru Eguchi , Kazuhiro Hikami

In 1954, Atkin and Swinnerton-Dyer proved Dyson's conjectures on the rank of a partition by establishing formulas for the generating functions for rank differences in arithmetic progressions. In this paper, we prove formulas for the…

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

We build upon the work by Bessenrodt and Ono, as well as Beckwith and Bessenrodt concerning the combined additive and multiplicative behavior of the $k$-regular partition functions $p_k(n)$. Our focus is on addressing the solutions of the…

Combinatorics · Mathematics 2024-06-18 Bernhard Heim , Markus Neuhauser

In this undergraduate thesis, we expand on the study of statistics on restricted growth functions avoiding patterns initiated by Campbell, et. al. Restricted growth functions are of interest because they are in bijection with set…

Combinatorics · Mathematics 2020-03-12 Robert Dorward

We show that some $q$-series such as universal mock theta functions are linear sums of theta quotients and mock Jacobi forms of weight 1/2, which become holomorphic parts of real analytic modular forms when they are restricted to torsion…

Number Theory · Mathematics 2014-01-14 Soon-Yi Kang

We prove that the generating function of overpartition $M2$-rank differences is, up to coefficient signs, a component of the vector-valued mock Eisenstein series attached to a certain quadratic form. We use this to compute analogs of the…

Number Theory · Mathematics 2018-09-26 Brandon Williams