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Dyson famously provided combinatorial explanations for Ramanujan's partition congruences modulo $5$ and $7$ via his rank function, and postulated that an invariant explaining all of Ramanujan's congruences modulo $5$, $7$, and $11$ should…

Number Theory · Mathematics 2021-05-28 Larry Rolen , Zack Tripp , Ian Wagner

Amdeberhan conjectured that the number of $(s,s+2)$-core partitions with distinct parts for an odd integer $s$ is $2^{s-1}$. This conjecture was first proved by Yan, Qin, Jin and Zhou, then subsequently by Zaleski and Zeilberger. Since the…

Combinatorics · Mathematics 2017-05-10 Jineon Baek , Hayan Nam , Myungjun Yu

For any positive integers $n$ and $r$, let $p_r(n)$ denotes the number of partitions of $n$ where each part has $r$ distinct colours. Many authors studied the partition function $p_r(n)$ for particular values of $r$. In this paper, we prove…

Number Theory · Mathematics 2020-08-17 Nipen Saikia , Chayanika Boruah

For $G=G_{n, 1/2}$, the Erd\H{o}s--Renyi random graph, let $X_n$ be the random variable representing the number of distinct partitions of $V(G)$ into sets $A_1, \ldots, A_q$ so that the degree of each vertex in $G[A_i]$ is divisible by $q$…

Combinatorics · Mathematics 2022-11-23 Paul Balister , Emil Powierski , Alex Scott , Jane Tan

In this paper, we use a branch of polyhedral geometry, Ehrhart theory, to expand our combinatorial understanding of congruences for partition functions. Ehrhart theory allows us to give a new decomposition of partitions, which in turn…

Combinatorics · Mathematics 2015-08-04 Felix Breuer , Dennis Eichhorn , Brandt Kronholm

We prove two new summation formulae of Hall-Littlewood polynomials over partitions into bounded parts and derive some new multiple $q$-identities of Rogers-Ramanujan type.

Combinatorics · Mathematics 2007-05-23 F. Jouhet , J. Zeng

In 2017, Keith presented a comprehensive survey on integer partitions into parts that are simultaneously regular, distinct, and/or flat. Recently, the authors initiated a study of partitions into parts that are simultaneously regular and…

Number Theory · Mathematics 2025-06-10 Mohammed L. Nadji , Moussa Ahmia

We explain the appearance of Rogers-Ramanujan series inside the tensor product of two basic $A_2^{(2)}$-modules, previously discovered by the first author in [F]. The key new ingredients are $(5,6)$ Virasoro minimal models and twisted…

Quantum Algebra · Mathematics 2012-12-27 Alex Feingold , Antun Milas

Let ${p}_{3,3}(n)$ denote the number of $2$-color partition triples of $n$ where one of the colors appears only in parts that are multiples of $3$. In this paper, we shall establish some interesting Ramanujan-type congruences for…

Number Theory · Mathematics 2018-03-08 Shane Chern , Chun Wang

Noting a curious link between Andrews' even-odd crank and the Stanley rank, we adopt a combinatorial approach building on the map of conjugation and continue the study of integer partitions with parts separated by parity. Our motivation is…

Number Theory · Mathematics 2025-06-11 Shishuo Fu , Dazhao Tang

In his recent work, Andrews revisited two-color partitions with certain restrictions on the differences between consecutive parts, and he established three theorems linking these two-color partitions with more familiar kinds of partitions.…

Combinatorics · Mathematics 2022-02-08 Shishuo Fu

Recently, Capparelli, Meurman, A. Primc and M. Primc introduced a class of colored partitions which has since been called CMPP partitions. This generalized earlier work by M. Primc and \v{S}iki\'{c}, and by Trup\v{c}evi\'{c}. One main…

Combinatorics · Mathematics 2026-05-21 Kağan Kurşungöz

We find two involutions on partitions that lead to partition identities for Ramanujan's third order mock theta functions $\phi(-q)$ and $\psi(-q)$. We also give an involution for Fine's partition identity on the mock theta function f(q).…

Combinatorics · Mathematics 2010-06-17 William Y. C. Chen , Kathy Q. Ji , Eric H. Liu

The famous Rogers-Ramanujan and Andrews--Gordon identities are embedded in a doubly-infinite family of Rogers-Ramanujan-type identities labelled by positive integers m and n. For fixed m and n the product side corresponds to a specialised…

Combinatorics · Mathematics 2013-11-06 S. Ole Warnaar

We study the divisibility properties of the partition function associated with the eighth order mock theta function $V_0(q)$, introduced by Gordon and McIntosh. We obtain congruences modulo powers of 2 for certain coefficients of the…

Number Theory · Mathematics 2020-01-01 B. Hemanthkumar

The arithmetic properties of the ordinary partition function $p(n)$ have been the topic of intensive study for the past century. Ramanujan proved that there are linear congruences of the form $p(\ell n+\beta)\equiv 0\pmod\ell$ for the…

Number Theory · Mathematics 2022-12-06 Scott Ahlgren , Olivia Beckwith , Martin Raum

We give a proof of a recent combinatorial conjecture due to the first author, which was discovered in the framework of commutative algebra. This result gives rise to new companions to the famous Andrews-Gordon identities. Our tools involve…

Combinatorics · Mathematics 2023-02-24 Pooneh Afsharijoo , Jehanne Dousse , Frédéric Jouhet , Hussein Mourtada

In recent work, M. Schneider and the first author studied a curious class of integer partitions called "sequentially congruent" partitions: the $m$th part is congruent to the $(m+1)$th part modulo $m$, with the smallest part congruent to…

Number Theory · Mathematics 2024-05-31 Robert Schneider , James A. Sellers , Ian Wagner

This paper is concerned with a class of partition functions $a(n)$ introduced by Radu and defined in terms of eta-quotients. By utilizing the transformation laws of Newman, Schoeneberg and Robins, and Radu's algorithms, we present an…

Number Theory · Mathematics 2019-11-19 William Y. C. Chen , Julia Q. D. Du , Jack C. D. Zhao

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