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Related papers: On Partition Classes Arising from Parity, Differen…

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The study of partitions with parts separated by parity was initiated by Andrews in connection with Ramanujan's mock theta functions, and his variations on this theme have produced generating functions with a large variety of different…

Combinatorics · Mathematics 2024-03-04 Kathrin Bringmann , William Craig , Caner Nazaroglu

We prove an identity about partitions with a very elementary formulation. We had previously conjectured this identity, encountered in the study of shifted Jack polynomials (math.CO/9901040). The proof given is using a trivariate generating…

Combinatorics · Mathematics 2007-05-23 Michel Lassalle

In this paper we study partitions whose successive ranks belong to a given set. We enumerate such partitions while keeping track of the number of parts, the largest part, the side of the Durfee square, and the height of the Durfee…

Combinatorics · Mathematics 2022-11-17 Sylvie Corteel , Sergi Elizalde , Carla Savage

We obtain a new family of relations satisfied by the partition function. In contrast with most partition relations, these involve non-trivial roots of unity. We present two proofs, one using the fact that the discriminant modular form is a…

Number Theory · Mathematics 2025-09-29 Florian Breuer , Fabien Pazuki

An overpartition is a partition such that the first occurrence (equivalently, the last occurrence) of a number may be overlined. In this article, we investigate three contents of overpartitions. We first consider the $r$-chain minimal and…

Combinatorics · Mathematics 2026-01-29 Y. H. Chen , Y. Q. Chen , Thomas Y. He , H. X. Huang , X. Zhang

A $(k,\ell )$ partial partition of an $n$-element set is a collection of $\ell $ pairwise disjoint $k$-element subsets. It is proved that, if $n$ is large enough, one can find $\left\lfloor {n\choose k}/{\ell}\right\rfloor$ such partial…

Combinatorics · Mathematics 2023-12-15 Gyula O. H. Katona , Gyula Y. Katona

We classify the subsets of a group by their sizes, formalize the basic methods of partitions and apply them to partition a group to subsets of prescribed sizes.

Group Theory · Mathematics 2014-09-08 Igor Protasov , Sergii Slobodianiuk

Folsom, Kent, and Ono used the theory of modular forms modulo $\ell$ to establish remarkable ``self-similarity'' properties of the partition function and give an overarching explanation of many partition congruences. We generalize their…

Number Theory · Mathematics 2015-10-06 Eva Belmont , Holden Lee , Alexandra Musat , Sarah Trebat-Leder

We obtain a unification of two refinements of Euler's partition theorem respectively due to Bessenrodt and Glaisher. A specialization of Bessenrodt's insertion algorithm for a generalization of the Andrews-Olsson partition identity is used…

Combinatorics · Mathematics 2009-02-25 William Y. C. Chen , Henry Y. Gao , Kathy Q. Ji , Martin Y. X. Li

We prove specific biases in the number of occurrences of parts belonging to two different residue classes $a$ and $b$, modulo a fixed non-negative integer $m$, for the sets of unrestricted partitions, partitions into distinct parts, and…

Combinatorics · Mathematics 2025-02-03 Michael J. Schlosser , Nian Hong Zhou

Recently, Schneider and Schneider defined a new class of partitions called sequentially congruent partitions, in which each part is congruent to the next part modulo its index, and they proved two partition bijections involving these…

Combinatorics · Mathematics 2022-08-10 Ezekiel Cochran , Madeline Locus Dawsey , Emma Harrell , Samuel Saunders

Stanley defined a partition function t(n) as the number of partitions $\lambda$ of n such that the number of odd parts of $\lambda$ is congruent to the number of odd parts of the conjugate partition $\lambda'$ modulo 4. We show that t(n)…

Combinatorics · Mathematics 2010-06-29 William Y. C. Chen , Kathy Q. Ji , Albert J. W. Zhu

Recently, Merca and Schmidt proved a number of identities relating partitions of an integer with two classic number-theoretic functions, namely the M\"obius function and Euler's totient function. Their demonstrations were mainly algebraic.…

Number Theory · Mathematics 2023-10-31 Bruce Sagan

The lattice of partitions of a set and its d-divisible generalization have been much studied for their combinatorial, topological, and representation-theoretic properties. An ordered set partition is a set partition where the subsets are…

Combinatorics · Mathematics 2025-07-08 Bruce E Sagan , Sheila Sundaram

We translate Uchimura's identity for the divisor function and whose generalizations into combinatorics of partitions, and give a combinatorial proof of them. As a by-product of their proofs, we obtain some combinatorial results.

Combinatorics · Mathematics 2012-01-23 Masanori Ando

This paper does exactly what the title says it does. It expands the given series to arrive at the familiar "pentagonal number" expansion, also known as the pentagonal number theorem, and recalls its application to partition numbers. The…

History and Overview · Mathematics 2012-02-02 Leonhard Euler , Artur Diener , Alexander Aycock

We propose and prove a new polynomial identity that implies Schur's partition theorem. We give combinatorial interpretations of some of our expressions in the spirit of Kur\c{s}ung\"oz. We also present some related polynomial and $q$-series…

Combinatorics · Mathematics 2019-03-05 Ali K. Uncu

The investigation of partitions of integers plays an important role in combinatorics and number theory. Among the many variations, partitions into powers $0<\alpha<1$ were of recent interest. In the present paper we want to extend our…

Combinatorics · Mathematics 2023-11-16 Gabriel F. Lipnik , Manfred G. Madritsch , Robert F. Tichy

We study the generating function for overpartitions with bounded differences between largest and smallest parts, which is analogous to a result of Breuer and Kronholm on integer partitions. We also connect this problem with over…

Combinatorics · Mathematics 2017-10-31 Shane Chern

We give a new, systematic proof for a recent result of Larry Guth and thus also extend the result to a setting with several families of varieties: For any integer $D\geq 1$ and any collection of sets $\Gamma_1,\ldots,\Gamma_j$ of low-degree…

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