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Related papers: $q$-Identities related to overpartitions and divis…

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We give new generalizations of some q-series identities of Dilcher and Prodinger related to divisor functions. Some interesting special cases are also deduced, including an identity related to overpartitions studied by Corteel and Lovejoy.

Combinatorics · Mathematics 2012-04-10 Victor J. W. Guo , Cai Zhang

We give generalizations and simple proofs of some $q$-identities of Dilcher, Fu and Lascoux related to divisor functions.

Combinatorics · Mathematics 2007-05-23 Jiang Zeng

We prove formulas for generalized rank deviations for overpartitions. These formulas are in terms of Appell-Lerch series and sums of quotients of theta functions and extend work of Lovejoy and the second author. As an application, we…

Number Theory · Mathematics 2025-11-21 Kevin Allen , Robert Osburn , Matthias Storzer

Recently, Andrews and EI Bachraoui discovered several companions for some famous $q$-series formulas, and derived some new identities involving partitions and overpartitions with distinct parts. In this paper, we shall refine their results…

Combinatorics · Mathematics 2025-06-18 Haijun Li

We provide an exposition of q-identities with multiple sums related to divisor functions given by Dilcher, Prodinger, Fu and Lascoux, Zeng, Guo and Zhang. Meanwhile, for each of these identities, a more powerful statement will be derived…

Combinatorics · Mathematics 2024-08-05 Aung Phone Maw

We extend partition-theoretic work of Andrews, Bressoud, and Burge to overpartitions, defining the notions of successive ranks, generalized Durfee squares, and generalized lattice paths, and then relating these to overpartitions defined by…

Combinatorics · Mathematics 2007-05-23 Sylvie Corteel , Olivier Mallet

In this paper, we find an identity which connects the overpartition function and the function of Rogers--Ramanujan--Gordon type overpartitions by considering the weights and gaps. This identity can be seen as an analogue of the weighted…

Combinatorics · Mathematics 2017-04-21 Jeremy J. F. Guo , Doris D. M. Sang , Diane Y. H. Shi

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

We construct a family of partition identities which contain the following identities: Rogers-Ramanujan-Gordon identities, Bressoud's even moduli generalization of them, and their counterparts for overpartitions due to Lovejoy et al. and…

Combinatorics · Mathematics 2014-09-19 Kağan Kurşungöz

We present outlines of a general method to reach certain kinds of $q$-multiple sum identities. Throughout our exposition, we shall give generalizations to the results given by Dilcher, Prodinger, Fu and Lascoux, Zeng, and Guo and Zhang…

Combinatorics · Mathematics 2025-06-09 Aung Phone Maw

Motivated by Alladi's recent multi-dimensional generalization of Sylvester's classical identity, we provide a simple combinatorial proof of an overpartition analogue, which contains extra parameters tracking the numbers of overlined parts…

Combinatorics · Mathematics 2018-04-06 Shane Chern , Shishuo Fu , Dazhao Tang

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

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 generalize recent results of Breuer and Kronholm, and Chern on partitions and overpartitions with bounded differences between largest and smallest parts. We prove our generalization both analytically and combinatorially.

Combinatorics · Mathematics 2018-05-24 Shane Chern , Ae Ja Yee

In a previous paper, we studied an overpartition analogue of Gaussian polynomials as the generating function for overpartitions fitting inside an $m \times n$ rectangle. Here, we add one more parameter counting the number of overlined…

Combinatorics · Mathematics 2017-07-19 Jehanne Dousse , Byungchan Kim

Motivated by two Legendre-type formulas for overpartitions, we derive a variety of their companions as Legendre theorems for overpartition pairs. This leads to equalities of subclasses of overpartitions and overpartition pairs.

Number Theory · Mathematics 2024-12-17 George E. Andrews , Mohamed El Bachraoui

We propose and recursively prove polynomial identities which imply Capparelli's partition theorems. We also find perfect companions to the results of Andrews, and Alladi, Andrews and Gordon involving $q$-trinomial coefficients. We follow…

Number Theory · Mathematics 2019-02-18 Alexander Berkovich , Ali K. Uncu

Using basic hypergeometric functions and partial fraction decomposition we give a new kind of generalization of identities due to Uchimura, Dilcher, Van Hamme, Prodinger, and Chen-Fu related to divisor functions. An identity relating…

Combinatorics · Mathematics 2020-08-25 Victor J. W. Guo , Jiang Zeng

We obtain a three-parameter $q$-series identity that generalizes two results of Chan and Mao. By specializing our identity, we derive new results of combinatorial significance in connection with $N(r, s, m, n)$, a function counting certain…

Combinatorics · Mathematics 2022-01-19 Atul Dixit , Ankush Goswami

In 1969, Andrews proved a theorem on partitions with difference conditions which generalises Schur's celebrated partition identity. In this paper, we generalise Andrews' theorem to overpartitions. The proof uses q-differential equations and…

Combinatorics · Mathematics 2014-05-02 Jehanne Dousse
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