English
Related papers

Related papers: New Identities for 7-cores with prescribed BG-rank

200 papers

Let \pi be a partition. In [2] we defined BG-rank(\pi) as an alternating sum of parities of parts. This statistic was employed to generalize and refine the famous Ramanujan modulo 5 partition congruence. Let p_j(n)(a_{t,j}(n)) denote a…

Combinatorics · Mathematics 2007-05-23 Alexander Berkovich , Frank G. Garvan

In this study, we explore the arithmetic properties of $b_{7^k}(n)$ for any $k\geq1$, which enumerates the partitions of $n$ where no part is divisible by $7^k$. By constructing generating functions for $b_{7^k}(n)$ over specific arithmetic…

Number Theory · Mathematics 2025-03-06 D. S. Gireesh , HemanthKumar B

Let r_j(\pi,s) denote the number of cells, colored j, in the s-residue diagram of partition \pi. The GBG-rank of \pi mod s is defined as r_0+r_1*w_s+r_2*w_s^2+...+r_(s-1)*w_s^(s-1), where w_s=exp(2*\Pi*I/s). We will prove that for (s,t)=1,…

Combinatorics · Mathematics 2008-08-14 Alexander Berkovich , Frank G. Garvan

We find the number of partitions of $n$ whose BG-rank is $j$, in terms of $pp(n)$, the number of pairs of partitions whose total number of cells is $n$, giving both bijective and generating function proofs. Next we find congruences mod 5…

Combinatorics · Mathematics 2007-05-23 William Y. C. Chen , Kathy Q. Ji , Herbert S. Wilf

Let ${{B}_{3}}(n)$ denote the number of partition triples of $n$ where each partition is 3-core. With the help of generating function manipulations, we find several infinite families of arithmetic identities and congruences for…

Number Theory · Mathematics 2015-02-25 Liuquan Wang

We investigate some weighted integer partitions whose generating functions are double-series. We will establish closed formulas for these $q$-double series and deduce that their coefficients are non-negative. This leads to inequalities…

Number Theory · Mathematics 2025-07-15 George E. Andrews , Mohamed El Bachraoui

We construct a $k$-fold $q$-series as a generating function of $k$-regular partitions for each positive integer $k$. The $k=1$ case is one of Euler's $q$-series identities pertaining to the partitions into distinct parts. The construction…

Combinatorics · Mathematics 2025-02-25 Kağan Kurşungöz

It was recently shown that $q\omega(q)$, where $\omega(q)$ is one of the third order mock theta functions, is the generating function of $p_{\omega}(n)$, the number of partitions of a positive integer $n$ such that all odd parts are less…

Number Theory · Mathematics 2016-03-15 George E. Andrews , Atul Dixit , Daniel Schultz , Ae Ja Yee

We study the generating function of the excess number of Rogers-Ramanujan partitions with odd rank over those with even rank, and, using combinatorial and analytical techniques, show that this generating function is closely connected with…

Combinatorics · Mathematics 2025-08-07 Atul Dixit , Gaurav Kumar , Aviral Srivastava

Let $p(n)$ be the number of partition of a positive integer $n$. We derive a new identity for complete Bell polynomials based on a generating function of $p(7n+5)$ given by Ramanujan.

Combinatorics · Mathematics 2018-09-13 Ho-Hon Leung

In this work we define a unified generating functions for 9 different kinds of set partitions including cyclically ordered set partitions. Such generating function depends on 4 parameters. We consider property of this function and provide…

Combinatorics · Mathematics 2022-08-29 Orli Herscovici

We consider sequences of integers defined by a system of linear inequalities with integer coefficients. We show that when the constraints are strong enough to guarantee that all the entries are nonnegative, the generating function for the…

Combinatorics · Mathematics 2007-05-23 S. Corteel , C. D. Savage

By work of Bringmann, Ono, and Rhoades it is known that the generating function of the $M_2$-rank of partitions without repeated odd parts is the so-called holomorphic part of a certain harmonic Maass form. Here we improve the standing of…

Number Theory · Mathematics 2017-02-10 Chris Jennings-Shaffer

For rational $\alpha$, the fractional partition functions $p_\alpha(n)$ are given by the coefficients of the generating function $(q;q)^\alpha_\infty$. When $\alpha=-1$, one obtains the usual partition function. Congruences of the form…

Number Theory · Mathematics 2019-07-17 Erin Bevilacqua , Kapil Chandran , Yunseo Choi

A hyperbinary partition of the nonnegative integer n is a partition where every part is a power of 2 and every part appears at most twice. We give three applications of the length generating function for such partitions, denoted by h_q(n).…

Combinatorics · Mathematics 2026-03-04 Thomas McConville , James Propp , Bruce E. Sagan

In this paper, we introduce the generating functions of partition sequences. Partition sequences have a one-to-one correspondence with partitions. Therefore, the generating function has no multiplicity and appears meaningless initially.…

Combinatorics · Mathematics 2025-04-16 Masanori Ando

Ramanujan listed several q-series identities in his lost notebook. The most well known q-series identities are the Rogers-Ramanujan type identities which are first discovered by Rogers and then rediscovered by Ramanujan. In this paper, we…

Number Theory · Mathematics 2025-07-15 Sabi Biswas , Nipen Saikia

For the partition function $p(n)$, Ramanujan proved the striking identities $$ P_5(q):=\sum_{n\geq 0} p(5n+4)q^n =5\prod_{n\geq 1} \frac{\left(q^5;q^5\right)_{\infty}^5}{(q;q)_{\infty}^6}, $$ $$ P_7(q):=\sum_{n\geq 0} p(7n+5)q^n…

Number Theory · Mathematics 2025-10-08 Kathrin Bringmann , William Craig , Ken Ono

For any positive integers $s$ and $t$, let $Q_{t}^{s}(n)$ denotes the number of partitions of a positive integer $n$ into distinct parts such that no part is congruent to $s$ or $t-s$ modulo $t$. We prove some Ramanujan-type congruences for…

Number Theory · Mathematics 2025-08-19 Rinchin Drema , Nipen Saikia

We provide a framework for relating certain q-series defined by sums over partitions to multiple zeta values. In particular, we introduce a space of polynomial functions on partitions for which the associated q-series are q-analogues of…

Number Theory · Mathematics 2023-08-22 Henrik Bachmann , Jan-Willem van Ittersum
‹ Prev 1 2 3 10 Next ›