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Partitions wherein the even parts appear in two different colours are known as cubic partitions. Recently, Merca introduced and studied the function $A(n)$, which is defined as the difference between the number of cubic partitions of $n$…

Number Theory · Mathematics 2023-01-26 Nayandeep Deka Baruah , Abhishek Sharma

In this paper we present an extension of Stanley's theorem related to partitions of positive integers. Stanley's theorem states a relation between "the sum of the numbers of distinct members in the partitions of a positive integer $n$" and…

Discrete Mathematics · Computer Science 2010-12-30 Manosij Ghosh Dastidar , Sourav Sen Gupta

In 2002, Andrews, Lewis, and Lovejoy introduced the combinatorial objects which they called \emph{partitions with designated summands}. These are built by taking unrestricted integer partitions and designating exactly one of each occurrence…

Number Theory · Mathematics 2025-05-28 Shane Chern , James A. Sellers

Let $a_3(n)$ and $a_9(n)$ are 3 and 9-regular cubic partitions of $n$. In this paper, we find the infinite family of congruences modulo powers of 3 for $a_3(n)$ and $a_9(n)$ such as \[a_3\left (3^{2\alpha}n+\frac{3^{2\alpha}-1}{4}\right…

Number Theory · Mathematics 2019-07-02 D. S. Gireesh , M. S. Mahadeva Naika , Shivashankar C

In 2007, Andrews and Paule introduced the family of functions $\Delta_k(n)$, which enumerate the number of broken $k$-diamond partitions for a fixed positive integer $k$. In 2013, Radu and Sellers completely characterized the parity of…

Combinatorics · Mathematics 2026-04-03 Dandan Chen , Rong Chen , Siyu Yin

We study frequency moments of partition statistics arising from Euler products $A(q)=\prod_{r\ge1}(1-q^r)^{-c(r)}$ via a transform that expresses the moment generating functions as $B(q)$ times explicit divisor--sum series determined by…

Number Theory · Mathematics 2026-02-11 Hartosh Singh Bal

In this paper, we prove some new \(q\)-series identities connecting \(4\)-regular partitions and partitions with distinct even parts with largest part being odd. We also define three new partition functions with distinct even parts except…

Number Theory · Mathematics 2026-02-18 Gaurab Bardhan , Nipen Saikia

If $a_1, a_2, ..., a_k$ and $n$ are positive integers such that $n = a_1 + a_2 + ... + a_k$, then the sum $a_1 + a_2 + ... + a_k$ is said to be a \emph{partition of $n$} of \emph{length $k$}, and $a_1, a_2, ..., a_k$ are said to be the…

Combinatorics · Mathematics 2013-04-25 Peter Borg

In this paper, we generalize Andrews' partitions separated by parity to overpartitions in two ways. We investigate the generating functions for 16 overpartition families whose parts are separated by parity, and we prove various $q$-series…

Number Theory · Mathematics 2026-01-14 Kathrin Bringmann , Catherine Cossaboom , William Craig

We introduce and study block-separated overpartitions, a constrained family of overpartitions in which no two consecutive distinct part-blocks are both overlined. This local restriction produces a new sequence that naturally interpolates…

Combinatorics · Mathematics 2026-03-09 El-Mehdi Mehiri

We show that the number of partitions of n with alternating sum k such that the multiplicity of each part is bounded by 2m+1 equals the number of partitions of n with k odd parts such that the multiplicity of each even part is bounded by m.…

Combinatorics · Mathematics 2012-08-23 William Y. C. Chen , Ae Ja Yee , Albert J. W. Zhu

Bringmann and Lovejoy introduced a rank for overpartition pairs and investigated its role in congruence properties of $\bar{pp}(n)$, the number of overpartition pairs of n. In particular, they applied the theory of Klein forms to show that…

Combinatorics · Mathematics 2010-09-28 William Y. C. Chen , Bernard L. S. Lin

We look at extensions of formulas given by Jovovic and recently proved by Dhar on integer partitions where the smallest part occurs at least $m$ times and on integer partitions with fixed differences between the largest and smallest parts…

Combinatorics · Mathematics 2024-01-08 Pankaj Jyoti Mahanta , Manjil P. Saikia

Let $\mathrm{pod}_{-3}(n)$ denote the number of partition triples of $n$ where the odd parts in each partition are distinct. We find many arithmetic properties of $\mathrm{pod}_{-3}(n)$ involving the following infinite family of…

Number Theory · Mathematics 2015-07-13 Liuquan Wang

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

Define the minimal excludant of an overpartition $\pi$, denoted $ \overline{\text{mex}}(\pi)$, to be the smallest positive integer that is not a part of the non-overlined parts of $\pi$. For a positive integer $n$, the function…

Number Theory · Mathematics 2023-09-11 Victor Manuel R. Aricheta , Judy Ann L. Donato

In this paper, we contribute to the study of topological partition relations for pairs of countable ordinals and prove that, for all integers $n \geq 3$, \begin{align*} R^{cl}(\omega+n,3) &\geq \omega^2 \cdot n + \omega \cdot (R(n,3)-n)+n\\…

Logic · Mathematics 2022-04-20 Burak Kaya , Irmak Saglam

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 prove that for any integer $k\geq 2$ and $\varepsilon>0$, there is an integer $\ell_0\geq 1$ such that any $k$-uniform hypergraph on $n$ vertices with minimum codegree at least $(1/2+\varepsilon)n$ has a fractional decomposition into…

Combinatorics · Mathematics 2021-01-15 Felix Joos , Marcus Kühn

We present Euler-type recurrence relations for some partition functions. Some of our results provide new recurrences for the number of unrestricted partitions of $n$, denote by $p(n)$. Others establish recurrences for partition functions…

Combinatorics · Mathematics 2020-07-16 Robson da Silva , Pedro Diniz Sakai
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