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We prove a theorem which add a new member to Rogers-Ramanujan identities. This new member counts partitions with different type of constraints on even and odd parts. Generalizing this theorem, we obtain two family of partition identities of…

Algebraic Geometry · Mathematics 2021-11-11 Pooneh Afsharijoo

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

Singular overpartitions, which are defined by George Andrews, are overpartitions whose Frobenius symbols have at most one overlined entry in each row. In his paper, Andrews obtained interesting combinatorial results on singular…

Combinatorics · Mathematics 2017-05-19 Seunghyun Seo , Ae Ja Yee

In this paper, we give a conjecture, which generalises Euler's partition theorem involving odd parts and different parts for all moduli. We prove this conjecture for two family partitions. We give $q$-difference equations for the related…

Combinatorics · Mathematics 2020-05-19 Xinhua Xiong , William J. Keith

We give a commutative algebra viewpoint on Andrews recursive formula for the partitions appearing in "Gordon's identities", which are a generalization of Rogers-Ramanujan identities. Using this approach and differential ideals we conjecture…

Algebraic Geometry · Mathematics 2021-11-11 Pooneh Afsharijoo

For $k\geq i\geq 1$, let $B_{k,i}(n)$ denote the number of partitions of $n$ such that part 1 appears at most $i-1$ times, two consecutive integers l and $l+1$ appear at most $k-1$ times and if l and $l+1$ appear exactly $k-1$ times then…

Combinatorics · Mathematics 2012-03-21 William Y. C. Chen , Doris D. M. Sang , Diane Y. H. Shi

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

Many classical $q$-series identities, such as the Rogers--Ramanujan identities, yield combinatorial interpretations in terms of integer partitions. Here we consider algebraically manipulating some of the classical $q$-series to yield…

Combinatorics · Mathematics 2025-02-03 Abdulaziz Alanazi , Augustine O. Munagi , Andrew V. Sills

In this paper, we establish two new Ramanujan-type congruences for the overpartition function: $\overline{p}(11\times(8n+5))\equiv 0 \pmod{11}$ and $\overline{p}(13\times 2^6(8n+7))\equiv 0 \pmod{13}$. The proofs rely on the theory of…

Number Theory · Mathematics 2026-03-10 XuanLing Wei

We show that the number of anti-lecture hall compositions of n with the first entry not exceeding k-2 equals the number of overpartitions of n with non-overlined parts not congruent to $0,\pm 1$ modulo k. This identity can be considered as…

Combinatorics · Mathematics 2010-06-22 William Y. C. Chen , Doris D. M. Sang , Diane Y. H. Shi

We generalise Euler's partition theorem involving odd parts and different parts for all moduli and provide new companions to Rogers-Ramanujan- Andrews-Gordon identities related to this theorem.

Combinatorics · Mathematics 2020-05-18 XinHua Xiong , William J. Keith

George Andrews [\emph{Bull. Amer. Math. Soc.}, 2007, 561--573] introduced the idea of a \emph{signed partiton} of an integer; similar to an ordinary integer partitions, but where some of the parts could be negative. Further, Andrews…

Combinatorics · Mathematics 2025-05-14 Abdulaziz M. Alanazi , Augustine O. Munagi , Andrew V. Sills

In this paper, we introduce a new series of Rogers-Ramanujan-Gordon partitions when k = 3. The combinatorial interpretation of the series is given by base partition, forward moves and backward moves. We conclude the paper with future…

Combinatorics · Mathematics 2023-12-27 Yalçın Can Kılıç

Recently the author introduced two new integer partition quadruple functions, which satisfy Ramanujan-type congruences modulo $3$, $5$, $7$, and $13$. Here we reprove the congruences modulo $3$, $5$, and $7$ by defining a rank-type…

Number Theory · Mathematics 2016-03-02 Chris Jennings-Shaffer

We investigate Ramanujan congruences for the function which counts the overpartitions of n with restricted odd differences. In particular, we show that only one such congruence exists. Our method involves using the theory of modular forms…

Number Theory · Mathematics 2022-04-07 Michael Hanson , Jeremiah Smith

In this paper, we combined two types of partitions and introduced 2-colored Rogers-Ramanujan partitions. By finding some functional equations and using a constructive method, some identities have been found. Some Overpartition identities…

Combinatorics · Mathematics 2022-03-30 Mohammad Zadeh Dabbagh

Recently, Andrews, Hirschhorn and Sellers have proven congruences modulo 3 for four types of partitions using elementary series manipulations. In this paper, we generalize their congruences using arithmetic properties of certain quadratic…

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

We present two new Ramanujan-type congruences modulo 5 for overpartition. We also give an affirmative answer to a conjecture of Dou and Lin, which includes four congruences modulo 25 for overpartition.

Number Theory · Mathematics 2017-03-02 Shane Chern , Manosij Ghosh Dastidar

For a positive integer $r$, George Andrews proved that the set of partitions of $n$ in which odd multiplicities are at least $2r + 1$ is equinumerous with the set of partitions of $n$ in which odd parts are congruent to $2r + 1$ modulo $4r…

Combinatorics · Mathematics 2022-12-29 Darlison Nyirenda

Ramanujan proved three famous congruences for the partition function modulo 5, 7, and 11. The first author and Boylan proved that these congruences are the only ones of this type. In 1984 Andrews introduced the $m$-colored Frobenius…

Number Theory · Mathematics 2025-09-16 Scott Ahlgren , Cruz Castillo