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A $k$-regular partition into distinct parts is a partition into distinct parts with no part divisible by $k$. In this paper, we provide a general method to establish the unimodality of $k$-regular partition into distinct parts where the…

Combinatorics · Mathematics 2023-06-13 Janet J. W. Dong , Kathy Q. Ji

In this paper, we consider the set of partitions $pend(n)$ which enumerates the number of partitions of $n$ wherein the even parts are not allowed to be distinct. Using a result of Newman, we prove a few infinite families of congruences…

Number Theory · Mathematics 2024-07-16 Hemjyoti Nath

The number of partitions of n into parts divisible by a or b equals the number of partitions of n in which each part and each difference of two parts is expressible as a non-negative integer combination of a or b. This generalizes…

Combinatorics · Mathematics 2007-06-18 Alexander E. Holroyd

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

We study the distribution of several statistics of large non-crossing partitions. First, we prove the Gaussian limit theorem for the number of blocks of a given fixed size. In contrast to the properties of usual set partitions, we show that…

Probability · Mathematics 2019-07-02 Vladislav Kargin

A partition is a $\bar{s}$-core if it is the result of removing all of the $s$-bars from a partition. We extend a method of Olsson and Bessenrodt to determine the number of even partitions that are simultaneously $\bar{s}$-core and…

Representation Theory · Mathematics 2016-09-06 Calvin Deng

In a previous paper of the second author with K. Ono, surprising multiplicative properties of the partition function were presented. Here, we deal with $k$-regular partitions. Extending the generating function for $k$-regular partitions…

Number Theory · Mathematics 2014-09-11 Olivia Beckwith , Christine Bessenrodt

Motivated by Andrews' recent work related to Euler's partition theorem, we consider the set of partitions of an integer $n$ where the set of even parts has exactly $j$ elements, versus the set of partitions of $n$ where the set of repeated…

Combinatorics · Mathematics 2017-05-16 Shishuo Fu , Dazhao Tang

We discuss a new companion to Capparelli's identities. Capparelli's identities for m=1,2 state that the number of partitions of $n$ into distinct parts not congruent to m, -m modulo $6$ is equal to the number of partitions of n into…

Combinatorics · Mathematics 2015-06-15 Alexander Berkovich , Ali Kemal Uncu

The combinatorial properties of partitions with various restrictions on their hooksets are explored. A connection with numerical semigroups extends current results on simultaneous s/t-cores. Conditions that suffice for a partition to…

Combinatorics · Mathematics 2010-11-17 William J. Keith , Rishi Nath

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

We prove an explicit formula to count the partitions of $n$ whose product of the summands is at most $n$. In the process, we also deduce a result to count the multiplicative partitions of $n$.

Combinatorics · Mathematics 2022-10-25 Pankaj Jyoti Mahanta

Euler's theorem asserts that $A(n)=B(n)$ where $A(n)$ is the number of partitions of $n$ into distinct parts and $B(n)$ is the number of partitions of $n$ into odd parts. In this paper, it is proved that for $n>0$, \begin{align*}…

Combinatorics · Mathematics 2025-11-07 George E. Andrews , Rahul Kumar , Ae Ja Yee

In the paper, the authors present several new relations and applications for the combinatorial sequence that counts the possible partitions of a finite set with the restriction that the size of each block is contained in a given set. One of…

Combinatorics · Mathematics 2018-04-12 Beáta Bényi , José L. Ramírez

Euler's partition identity states that the number of partitions of $n$ into odd parts is equal to the number of partitions of $n$ into distinct parts. Strikingly, Straub proved in 2016 that this identity also holds when counting partitions…

Combinatorics · Mathematics 2025-02-19 Gabriel Gray , Emily Payne , Holly Swisher , Ren Watson

Simultaneous core partitions have attracted much attention since Anderson's work on the number of $(t_1,t_2)$-core partitions. In this paper we focus on simultaneous core partitions with distinct parts. The generating function of $t$-core…

Combinatorics · Mathematics 2017-03-21 Huan Xiong

In this article we study the "norm" of an integer partition, which we define to be the product of the parts. This partition-theoretic statistic has appeared here and there in the literature of the last century or so, and is at the heart of…

Number Theory · Mathematics 2021-02-16 Andrew V. Sills , Robert Schneider

Unrefinable partitions are a subset of partitions into distinct parts which satisfy an additional unrefinability property. More precisely, being an unrefinable partition means that none of the parts can be written as the sum of smaller…

Combinatorics · Mathematics 2023-01-11 Riccardo Aragona , Lorenzo Campioni , Roberto Civino , Massimo Lauria

A partition of a positive integer $n$ is a non-increasing sequence of positive integers which sum to $n$. A recently studied aspect of partitions is the minimal excludant of a partition, which is defined to be the smallest positive integer…

Number Theory · Mathematics 2025-07-08 Judy Ann Donato

In this note, we give a new necessary condition for the existence of non-trivial partitions of a finite vector space. Precisely, we prove that, if V is a finite vector space over a field of order q, then the number of the subspaces of…

Combinatorics · Mathematics 2009-02-19 Antonino Giorgio Spera