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In this (partly expository) paper we give a short overview about the close relationship between the sequence of Catalan numbers and Hankel determinants from the point of view of orthogonal polynomials and show that an analogous situation…

Combinatorics · Mathematics 2021-05-04 Johann Cigler

This note presents some results about Hankel determinants of backwards shifted Catalan-like numbers and related sequences.

Combinatorics · Mathematics 2024-04-16 Johann Cigler

The purpose of this paper is to compute asymptotically Hankel determinants for weights that are supported in a semi-infinite interval.The main idea is to reduce the problem to determinants of other operators whose determinant asymptotics…

Classical Analysis and ODEs · Mathematics 2007-05-23 Estelle L. Basor , Yang Chen , Harold Widom

This note collects some facts and conjectures about the Hankel determinants and their generating functions of the columns of Hoggatt triangles which apparently are related to combinatorial objects such as Young tableaux and Narayana…

Combinatorics · Mathematics 2022-02-24 Johann Cigler

We study some polynomials which are related to Hankel determinants of backward shifts of the coefficients of a partial theta function. In this version an appendix is added which gives a simple formula for the coefficients of the reciprocal…

Combinatorics · Mathematics 2024-07-25 Johann Cigler

This note collects some results and conjectures for the generating functions of the Hankel determinants of certain polynomials which are related to Motzkin paths.

Combinatorics · Mathematics 2022-06-24 Johann Cigler

In this expository paper we compute Hankel determinants of some sequences whose generating functions are given by C-fractions and derive orthogonality properties for associated polynomials.

Combinatorics · Mathematics 2013-04-02 Johann Cigler

We prove evaluations of Hankel determinants of linear combinations of moments of orthogonal polynomials (or, equivalently, of generating functions for Motzkin paths), thus generalising known results for Catalan numbers.

Combinatorics · Mathematics 2021-04-13 Johann Cigler , Christian Krattenthaler

In this note, we present a systematic method to explicitly compute the determinants and inverses for some generalized Hilbert matrices associated with orthogonal systems with explicit representations. We expressed the determinant, the…

Classical Analysis and ODEs · Mathematics 2009-06-12 Ruiming Zhang

In this (mostly expository) paper I want to share some observations prompted by a class of matrices whose determinants are Catalan numbers. Considering different methods of proof we obtain some generalizations and q-analogues and…

Combinatorics · Mathematics 2019-05-03 Johann Cigler

We calculate the Hankel determinants of sequences of Bernoulli polynomials. This corresponding Hankel matrix comes from statistically estimating the variance in nonparametric regression. Besides its entries' natural and deep connection with…

Number Theory · Mathematics 2021-12-20 Lin Jiu , Ye Li

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

Using continued fraction expansions of certain polygamma functions as a main tool, we find orthogonal polynomials with respect to the odd-index Bernoulli polynomials $B_{2k+1}(x)$ and the Euler polynomials $E_{2k+\nu}(x)$, for $\nu=0, 1,…

Number Theory · Mathematics 2020-06-30 Karl Dilcher , Lin Jiu

In recent developments, a general approach for solving Riemann--Hilbert problems numerically has been developed. We review this numerical framework, and apply it to the calculation of orthogonal polynomials on the real line. Combining this…

Mathematical Physics · Physics 2012-10-09 Sheehan Olver , Thomas Trogdon

We give an explicit evaluation, in terms of products of Jacobsthal numbers, of the Hankel determinants of order a power of two for the period-doubling sequence. We also explicitly give the eigenvalues and eigenvectors of the corresponding…

Combinatorics · Mathematics 2016-06-22 Robbert J. Fokkink , Cor Kraaikamp , Jeffrey Shallit

I study Hankel determinants of a class of sequences which can be interpreted as generalizations of the Catalan numbers and the central binomial coefficients. They follow a modular pattern with a frequent appearance of zeroes, so that the…

Combinatorics · Mathematics 2011-10-07 Johann Cigler

This paper sets out to introduce the generalized derangement polynomials of order $r $. It then proceeds to establish various identities associated with these polynomials, along with providing recurrence relations for derangement…

Combinatorics · Mathematics 2024-02-27 Ghania Guettai , Diffalah Laissaoui , Mourad Rahmani

In this paper we continue to investigate a certain class of Hankel-like positive definite kernels using their associated orthogonal polynomials. The main result of this paper is about the structure of this kind of kernels.

Functional Analysis · Mathematics 2007-05-23 T. Banks , T. Constantinescu

We give simple new proofs of some Hankel determinant evaluations by Omer Egecioglu and Aleksandar Cvetkovic, Predrag Rajkovic and Milos Ivkovic and prove analogous results for sums of moments of symmetric orthogonal polynomials.

Combinatorics · Mathematics 2012-11-07 Johann Cigler

In this note, we present the determinant, the inverse and a lower bound for the smallest eigenvalue for some Hankel matrices

Classical Analysis and ODEs · Mathematics 2009-06-23 Ruiming Zhang
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