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Recently, Andrews introduced separable integer partition classes and studied some well-known theorems. In this article, we will consider the types of partitions with restrictions on consecutive parts. We will show that such partitions are…

Combinatorics · Mathematics 2025-10-03 Y. Q. Chen , Thomas Y. He , X. M. Huang , T. T. Zou

Recently, Andrews introduced separable integer partition classes and analyzed some well-known theorems. In this paper, we investigate partitions with parts separated by parity introduced by Andrews with the aid of separable integer…

Combinatorics · Mathematics 2023-10-30 Y. H. Chen , Thomas Y. He , F. Tang , J. J. Wei

A classical method for partition generating functions is developed into a tool with wide applications. New expansions of well-known theorems are derived, and new results for partitions with n copies of n are presented.

Number Theory · Mathematics 2020-08-17 George E. Andrews

In this article, we first investigate the partitions whose parts are congruent to $a$ or $b$ modulo $k$ with the aid of separable integer partition classes with modulus $k$ introduced by Andrews. Then, we introduce the…

Combinatorics · Mathematics 2024-07-01 Thomas Y. He , C. S. Huang , H. X. Li , X. Zhang

In this paper, we investigate the combinatorial properties of three classes of integer partitions: (1) $s$-modular partitions, a class consisting of partitions into parts with a number of occurrences (i.e., multiplicity) congruent to $0$ or…

Combinatorics · Mathematics 2024-09-05 Mohammed L. Nadji , Ahmia Moussa

In this note we give three identities for partitions with parts separated by parity, which were recently introduced by Andrews.

Number Theory · Mathematics 2019-03-19 Kathrin Bringmann , Chris Jennings-Shaffer

Slater's list of Rogers-Ramanujan type identities consists of 130 series-product identities whose analytic proofs rely primarily on Bailey pair techniques. Although these identities play an important role in the theory of $q$-series and…

Number Theory · Mathematics 2026-03-17 Aritram Dhar , Ankush Goswami , Runqiao Li

Integer partitions are one of the most fundamental objects of combinatorics (and number theory), and so is enumerating objects avoiding patterns. In the present paper we describe two approaches for the systematic counting of classes of…

Combinatorics · Mathematics 2019-10-29 Mingjia Yang , Doron Zeilberger

This paper completes the classification of maximal unrefinable partitions, extending a previous work of Aragona et al. devoted only to the case of triangular numbers. We show that the number of maximal unrefinable partitions of an integer…

Combinatorics · Mathematics 2025-12-22 Riccardo Aragona , Lorenzo Campioni , Roberto Civino

The four-parameter weight of partitions played an important role in the theory of integer partitions, for its connection with various statistics, including the alternating sum and the BG-rank. In 2022, Andrews introduced the SIP classes, by…

Combinatorics · Mathematics 2026-03-04 Runqiao Li

We study partitions of totally positive integers in real quadratic fields. We develop an algorithm for computing the number of partitions, prove a result about the parity of the partition function, and characterize the quadratic fields such…

Number Theory · Mathematics 2023-10-17 David Stern , Mikuláš Zindulka

In 1882 J.J. Sylvester already proved, that the number of different ways to partition a positive integer into consecutive positive integers exactly equals the number of odd divisors of that integer (see [1]). We will now develop an…

Combinatorics · Mathematics 2019-07-17 Kai Michael Renken

In this paper we present a new class of integer partition identities. The number of partitions with d-distant parts can be represented as a sum of the number of partitions with 1-distant parts whose even parts are greater than twice the…

Combinatorics · Mathematics 2013-10-29 Ivica Martinjak , Dragutin Svrtan

Using the index theory of seaweed algebras, we explore various new integer partition statistics. We find relations to some well-known varieties of integer partitions as well as a surprising periodicity result.

Combinatorics · Mathematics 2018-10-10 Vincent Coll , Andrew Mayers , Nick Mayers

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

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 natural geometric extension of the partition function. More precisely, we investigate the problem of counting partitions of a rectangle into rectangular blocks with integer sides. Here, two partitions of a…

Combinatorics · Mathematics 2025-10-02 Krystian Gajdzica , Robin Visser , Maciej Zakarczemny

In the preceding decade, Andrews and Newman resurrected the concept of a `minimal excludant' of a partition ($mex$, for short), namely, the least positive missing integer in a partition. Subsequently, several authors have not only studied…

Combinatorics · Mathematics 2026-04-15 Subhash Chand Bhoria , Pramod Eyyunni , Subhrangsu Santra

We give short elementary expositions of combinatorial proofs of some variants of Euler's partitition problem that were first addressed analytically by George Andrews, and later combinatorially by others. Our methods, based on ideas from a…

Combinatorics · Mathematics 2021-07-19 Aritro Pathak

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
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