English
Related papers

Related papers: Overpartitions and singular overpartitions

200 papers

We prove multiplicative congruences mod $2^{12}$ for George Andrews's partition function, $\overline{\mathcal{EO}}(n)$, the number of partitions of $n$ in which every even part is less than each odd part and only the largest even part…

Number Theory · Mathematics 2025-05-05 Frank Garvan , Connor Morrow

In 2009, Corteel, Savelief and Vuleti\'c generalized the concept of overpartitions to a new object called plane overpartitions. In recent work, the author considered a restricted form of plane overpartitions called $k$-rowed plane…

Number Theory · Mathematics 2017-06-29 Ali H. Al-Saedi

We propose a method to construct a variety of partition identities at once. The main application is an all-moduli generalization of some of Andrews' results in [5]. The novelty is that the method constructs solutions to functional equations…

Combinatorics · Mathematics 2013-02-28 Kağan Kurşungöz

Frobenius' Theorem states that the algebra of quaternions $\mathbb H$ is, besides the fields of real and complex numbers, the only finite-dimensional real division algebra. We first give a short elementary proof of this theorem, then…

Rings and Algebras · Mathematics 2019-12-18 Matej Brešar , Victor S. Shulman

Andrews and Keith recently produced a general Schmidt type partition theorem using a novel interpretation of Stockhofe's bijection, which they used to find new $q$-series identities. This includes an identity for a trivariate 2-colored…

Combinatorics · Mathematics 2024-11-06 Hunter Waldron

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

Andrews studied a function which appears in Ramanujan's identities. In Ramanujan's "Lost" Notebook, there are several formulas involving this function, but they are not as simple as the identities with other similar shape of functions.…

Number Theory · Mathematics 2017-03-07 Min-Joo Jang

Recently, Andrews defined a partition function $\mathcal{EO}(n)$ which counts the number of partitions of $n$ in which every even part is less than each odd part. He also defined a partition function $\overline{\mathcal{EO}}(n)$ which…

Number Theory · Mathematics 2020-02-19 Chiranjit Ray , Rupam Barman

We extend George Andrew's general principle for counting generalized Frobenius partitions to include arrays with nonzero row difference and establish some congruences for these arrays.

Combinatorics · Mathematics 2019-09-24 Kelsey Scott

In this paper, we introduce the concept of the over-Mahonian number, which counts the overlined permutations of length $n$ with $k$ inversions, allowing the first elements associated with the inversions to be independently overlined or not.…

Combinatorics · Mathematics 2024-12-03 Ali Kessouri , Moussa Ahmia , Salim Mesbahi

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

In 2019, Andrews investigated integer partitions in which all parts of a given parity are smaller than those of the opposite parity and introduced eight partition functions based on the parity of the smaller parts and parts of a given…

Combinatorics · Mathematics 2025-12-01 Yan Fan , Ernest X. W. Xia

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

We generalize the method of combinatorial telescoping to the case of multiple summations. We shall demonstrate this idea by giving combinatorial proofs for two identities of Andrews on parity indices of partitions.

Combinatorics · Mathematics 2014-11-26 Daniel K. Du , Qing-Hu Hou , Charles B. Mei

Since their introduction by Andrews, generalized Frobenius partitions have interested a number of authors, many of whom have worked out explicit formulas for their generating functions in specific cases. This has uncovered interesting…

Number Theory · Mathematics 2016-10-25 Kathrin Bringmann , Larry Rolen , Michael Woodbury

The rank of partitions play an important role in the combinatorial interpretations of several Ramanujan's famous congruence formulas. In 2005 and 2008, the $D$-rank and $M_2$-rank of an overpartition were introduced by Lovejoy,…

Combinatorics · Mathematics 2019-03-06 Huan Xiong , Wenston J. T. Zang

In this paper, we establish a connection between Rogers-Ramanujan-Gordon type overpartitions to lattice paths with four kinds of unitary steps. By establishing the bijective relationship between overpartitions and lattice paths, we…

Combinatorics · Mathematics 2025-01-29 Diane Y. H. Shi

Recently, Andrews and Paule studied Schmidt type partitions using MacMahon's Partition Analysis and obtained various interesting results. In this paper, we focus on the combinatorics of Schmidt type partition theorems and characterize them…

Combinatorics · Mathematics 2022-04-07 Runqiao Li , Ae Ja Yee

George Andrews recently proved a new identity between the cardinalities of the set of Semi-Fibonacci partitions and the set of partitions into powers of two with all parts appearing an odd number of times. This paper extends the identity to…

Combinatorics · Mathematics 2019-11-20 Abdulaziz M. Alanazi , Augustine O. Munagi , Darlison Nyirenda

Following the general strategy proposed by G.Rybnikov, we present a proof of his well-known result, that is, the existence of two arrangements of lines having the same combinatorial type, but non-isomorphic fundamental groups. To do so, the…

Algebraic Geometry · Mathematics 2018-05-04 E. Artal , J. Carmona , J. I. Cogolludo , M. A. Marco