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Let $\mathscr{S}$ denote the set of integer partitions into parts that differ by at least $3$, with the added constraint that no two consecutive multiples of $3$ occur as parts. We derive trivariate generating functions of Andrews--Gordon…

Combinatorics · Mathematics 2021-10-27 George E. Andrews , Shane Chern , Zhitai Li

We prove a family of partition identities involving integer partitions in three colors. The conditions imposed on the types of partitions appearing in these identities involve constraints that arise in the Rogers-Ramanujan and…

Algebraic Geometry · Mathematics 2026-01-21 Pooneh Afsharijoo , Pedro D. González Pérez , Hussein Mourtada

In this paper, we study various classes of partition functions such as those related to the parity of the number of parts, to differences of partition numbers, and to partitions with a repeated smallest part. We establish identities…

Combinatorics · Mathematics 2026-01-27 Rahul Kumar , Nargish Punia

We study the generating functions for cylindric partitions with profile $(c_1,c_2,c_3)$ for all $c_1,c_2,c_3$ such that $c_1+c_2+c_3=5$. This allows us to discover and prove seven new $A_2$ Rogers-Ramanujan identities modulo $8$ with…

Combinatorics · Mathematics 2020-11-26 Sylvie Corteel , Jehanne Dousse , Ali K. Uncu

We considerably improve Ono's and Ahlgren-Ono's work on the frequent occurrence of Ramanujan-type congruences for the partition function, and demonstrate that Ramanujan-type congruences occur in families that are governed by square-classes.…

Number Theory · Mathematics 2019-11-13 Martin Raum

In 2015 Choi, Kim, and Lovejoy studied a weighted partition function, $A_1(m)$, which counted subpartitions with a structure related to the Rogers--Ramanujan identities. They conjectured the existence of an infinite class of congruences for…

Number Theory · Mathematics 2020-04-07 Nicolas Allen Smoot

We present what we call a "motivated proof" of the Bressoud-G\"ollnitz-Gordon partition identities. Similar "motivated proofs" have been given by Andrews and Baxter for the Rogers-Ramanujan identities and by Lepowsky and Zhu for Gordon's…

Combinatorics · Mathematics 2023-11-06 John Layne , Samuel Marshall , Christopher Sadowski , Emily Shambaugh

Partition theory abounds with bijections between different types of partitions. One of the most famous partition bijections maps each self-conjugate partition of a positive integer $n$ to a partition of $n$ into distinct odd parts, and vice…

Combinatorics · Mathematics 2022-06-22 Madeline Locus Dawsey , Benjamin Sharp

In 1919, Ramanujan discovered his famous congruences for the partition function. Not too long after, Freeman Dyson conjectured a combinatorial statistic existed that explained the three congruences, which he dubbed the \textit{crank}. A…

Combinatorics · Mathematics 2026-03-23 Samuel Wilson

We provide a bijective map from the partitions enumerated by the series side of the Rogers-Selberg mod 7 identities onto partitions associated with a special case of Basil Gordon's combinatorial generalization of the Rogers-Ramanujan…

Combinatorics · Mathematics 2018-12-14 Andrew V. Sills

We use a q-series identity by Ramanujan to give a combinatorial interpretation of Ramanujan's tau function which involves t-cores and a new class of partitions which we call (m,k)-capsids. The same method can be applied in conjunction with…

Combinatorics · Mathematics 2019-02-22 Frank Garvan , Michael J. Schlosser

We construct an evidently positive multiple series as a generating function for partitions satisfying the multiplicity condition in Schur's partition theorem. Refinements of the series when parts in the said partitions are classified…

Combinatorics · Mathematics 2019-02-21 Kağan Kurşungöz

Andrews investigated parity conditions in the Rogers-Ramanujan-Gordon theorem. Under the conditions that even parts or odd parts appear an even number of times, Andrews discovered two Rogers-Ramanujan-Gordon type partition theorems and…

Combinatorics · Mathematics 2026-05-07 Robert X. J. Hao , Xiaorui Niu , Doris D. M. Sang , Diane Y. H. Shi

We describe a method, based on the theory of Macdonald-Koornwinder polynomials, for proving bounded Littlewood identities. Our approach provides an alternative to Macdonald's partial fraction technique and results in the first examples of…

Combinatorics · Mathematics 2021-05-19 Eric M. Rains , S. Ole Warnaar

In this paper we give a combinatorial proof and refinement of a Rogers-Ramanujan type partition identity of Siladi\'c arising from the study of Lie algebras. Our proof uses generating functions and $q$-difference equations.

Combinatorics · Mathematics 2013-07-12 Jehanne Dousse

A well-known result from Hardy and Ramanujan gives an asymptotic expression for the number of possible ways to express an integer as the sum of smaller integers. In this vein, we consider the general partitioning problem of writing an…

Mathematical Physics · Physics 2009-02-10 Michael Coons , Klaus Kirsten

We study certain arithmetic properties of an analogue $B(n)$ of Lin's restricted partition function that counts the number of partition triples $\pi=(\pi_1,\pi_2,\pi_3)$ of $n$ such that $\pi_1$ and $\pi_2$ comprise distinct odd parts and…

Number Theory · Mathematics 2026-04-10 Russelle Guadalupe

We introduce two new integer partition functions, both of which are the number of partition quadruples of $n$ with certain size restrictions. We prove both functions satisfy Ramanujan-type congruences modulo $3$, $5$, $7$, and $13$ by use…

Number Theory · Mathematics 2016-03-21 Chris Jennings-Shaffer

In 1980, Bressoud conjectured a combinatorial identity $A_j=B_j$ for $j=0$ or $1$, where the function $A_j$ counts the number of partitions with certain congruence conditions and the function $B_j$ counts the number of partitions with…

Combinatorics · Mathematics 2022-05-10 Thomas Y. He , Kathy Q. Ji , Alice X. H. Zhao

Motivated by recent study on the number of $t$-hooks in partitions arising from Euler's partition identity, we investigate the number of $t$-hooks in the sets from the first Rogers-Ramanujan identity and the first little G\"ollitz identity.…

Number Theory · Mathematics 2026-03-03 Aritram Dhar , Byungchan Kim , Eunmi Kim , Ae Ja Yee
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