Chain sequences are positive sequences [a n ] of the form a n = g n (1& g n&1 ) for a nonnegative sequence [g n ]. This concept was introduced by Wall in connection with continued fractions. In his monograph on orthogonal polynomials, Chihara conjectured that if a n 1 4 for each n then (a n & 1 4 )
Quantum Hilbert matrices and orthogonal polynomials
✍ Scribed by Jørgen Ellegaard Andersen; Christian Berg
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 436 KB
- Volume
- 233
- Category
- Article
- ISSN
- 0377-0427
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✦ Synopsis
Using the notion of quantum integers associated with a complex number q = 0, we define the quantum Hilbert matrix and various extensions. They are Hankel matrices corresponding to certain little q-Jacobi polynomials when |q| < 1, and for the special value q = (1-
they are closely related to Hankel matrices of reciprocal Fibonacci numbers called Filbert matrices. We find a formula for the entries of the inverse quantum Hilbert matrix.
📜 SIMILAR VOLUMES
We find a local (d + 1) × (d + 1) Riemann-Hilbert problem characterizing the skew-orthogonal polynomials associated to the partition function of orthogonal ensembles of random matrices with a potential function of degree d. Our Riemann-Hilbert problem is similar to a local d × d Riemann-Hilbert prob
This letter proposes two different approaches in order to solve the connection problems Pn(-X) = fi Cm(n) Pro(x), m=O when the family { Pn (x)} belongs to a wide class of polynomials, including classical discrete orthogonal polynomials. The first approach uses the involutory character of the Lah num