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In this work, we construct a new Bailey pairs for the integral pentagon identity in terms of q-hypergeometric functions. The pentagon identity considered here represents equality of the partition functions of a certain three-dimensional…

Mathematical Physics · Physics 2022-01-12 Ilmar Gahramanov , Osman Erkan Kaluc

We give a method to embed the q-series in a (p,q)-series and derive the corresponding (p,q)-extensions of the known q-identities. The (p,q)-hypergeometric series, or twin-basic hypergeometric series (diferent from the usual bibasic…

Number Theory · Mathematics 2007-05-23 R. Jagannathan , K. Srinivasa Rao

Using the methods of classical invariant theory a general approach to finding of identities for Bernulli, Euler and Hermite polynomials is proposed.

Combinatorics · Mathematics 2012-10-02 Leonid Bedratyuk

In this paper, we present several novel integral representations of Catalan's constant. We begin by deriving an initial result expressed as a double integral. Subsequently, as a consequence of this result, we establish a general theorem…

Number Theory · Mathematics 2026-05-12 Emilio Gómez-Déniz , José María Sarabia

We analyze both finite and infinite systems of Riccati equations derived from stochastic differential games on infinite networks. We discuss a connection to the Catalan numbers and the convergence of the Catalan functions by Fourier…

Classical Analysis and ODEs · Mathematics 2024-08-20 Yicheng Feng , Jean-Pierre Fouque , Tomoyuki Ichiba

Two types of finite series of products of harmonic numbers involving nonnegative integer powers are evaluated, also yielding two other important harmonic number identities. The recursion formulas for these sums are derived, which are easily…

Number Theory · Mathematics 2012-02-23 Maarten Kronenburg

This paper considers the properties of Tribonacci numbers on identities, matrices, and determinants. In the first front part, we obtain several symmetric identities of Tribonacci numbers by a matrix-based approach and binomial inversion…

Number Theory · Mathematics 2026-05-26 Takao Komatsu , Tengfei Shen

In this article we prove a new elliptic hypergeometric integral identity. It previously appeared (as a conjecture) in articles by Rains, and Spiridonov and Vartanov. Moreover it gives a different proof of an identity in another article by…

Classical Analysis and ODEs · Mathematics 2009-12-22 Fokko J. van de Bult

In previous work on Clebsch-Gordan coefficients, certain remarkable hexagonal arrays of integers are constructed that display behaviors found in Pascal's Triangle. We explain these behaviors further using the binomial transform and discrete…

Combinatorics · Mathematics 2019-05-07 Robert W. Donley,

We analyze a weighted convolution of Catalan numbers $$ \sum_{k=0}^{n} \binom{2k}{k}\binom{2(n-k)}{n-k} a^k = \sum_{k=0}^{n} (k+1)(n-k+1) C_k C_{n-k} a^k, $$ emphasizing its combinatorial, analytic, and probabilistic aspects. We derive a…

Combinatorics · Mathematics 2026-04-24 Jean-Christophe Pain

A variation of Zeilberger's holonomic ansatz for symbolic determinant evaluations is proposed which is tailored to deal with Pfaffians. The method is also applicable to determinants of skew-symmetric matrices, for which the original…

Combinatorics · Mathematics 2012-05-17 Masao Ishikawa , Christoph Koutschan

In a work of 1995, Alladi, Andrews, and Gordon provided a generalization of the two Capparelli identities involving certain classes of integer partitions. Inspired by that contribution, in particular as regards the general setting and the…

Number Theory · Mathematics 2020-04-07 Stefano Capparelli , Alberto Del Fra , Pietro Mercuri , Andrea Vietri

We establish a connection between constructible representations (arising in the study of left cells in Weyl groups) and Catalan numbers.

Representation Theory · Mathematics 2024-03-06 George Lusztig , Eric Sommers

We investigate a class of combinatorial sums involving reciprocals of central binomial coefficients , employing generating functions as the primary solution technique to formulate and analyze series involving the Catalan's constant. Using a…

General Mathematics · Mathematics 2024-11-20 Olofin Akerele , Quadri Adeshina

We consider Catalan-pair graphs, a family of graphs that can be viewed as representing certain interactions between pairs of objects which are enumerated by the Catalan numbers. In this paper we study random Catalan-pair graphs and deduce…

Combinatorics · Mathematics 2019-02-26 Daniël Kroes , Sam Spiro

In this note, we explore certain determinantal descriptions of the Robbins numbers. Techniques used for this include continued fractions, Riordan arrays and series inversion. Proven and conjectured representations involve the determinants…

Combinatorics · Mathematics 2021-04-09 Paul Barry

Weighted Catalan numbers are a class of weighted sums over Dyck paths. Well-studied for their arithmetic properties and applications to enumerative combinatorics, these numbers were recently generalized to the setting of $k$-dimensional…

Combinatorics · Mathematics 2026-04-07 Ryota Inagaki , Dimana Pramatarova

We present several identities with a form of polynomials or rational functions that involve Pochhammer and q-Pochhammer symbols and q-binomials (i.e. Gauss polynomials). All these identities were obtained by some analytical methods based on…

Analysis of PDEs · Mathematics 2025-05-02 Paweł J. Szabłowski

We derive several symmetric identities for Bernoulli and Euler polynomials which imply some known identities. Our proofs depend on the new technique developed in part I and some identities obtained in [European J. Combin. 24(2003),…

Number Theory · Mathematics 2007-05-23 Zhi-Wei Sun , Hao Pan

This paper describes a method to find a connection between combinatorial identities and hypergeometric series with a number of examples. Combinatorial identities can often be written as hypergeometric series with unit argument. In a number…

Combinatorics · Mathematics 2022-04-13 Enno Diekema