Results 21 to 30 of about 909 (183)

Zeros of Jacobi and ultraspherical polynomials [PDF]

open access: yesThe Ramanujan Journal, 2021
Suppose $\{P_{n}^{(α, β)}(x)\}_{n=0}^\infty $ is a sequence of Jacobi polynomials with $ α, β>-1.$ We discuss special cases of a question raised by Alan Sokal at OPSFA in 2019, namely, whether the zeros of $ P_{n}^{(α,β)}(x)$ and $ P_{n+k}^{(α+ t, β+ s )}(x)$ are interlacing if $s,t >0$ and $ k \in \mathbb{N}.$ We consider two cases of this ...
Arvesú, J.   +2 more
openaire   +3 more sources

On the denseness of Jacobi polynomials [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
Let X represent either a space C[−1, 1] or , 1 ≤ p < ∞, of functions on [−1, 1]. It is well known that X are Banach spaces under the sup and the p‐norms, respectively. We prove that there exist the best possible normalized Banach subspaces of X such that the system of Jacobi polynomials is densely spread on these, or, in other words, each can be ...
openaire   +2 more sources

Parameter Derivatives of the Jacobi Polynomials with Three Variables on the Simplex

open access: yesMATEC Web of Conferences, 2016
In this paper, an attempt has been made to derive parameter derivatives of Jacobi polynomials with three variables on the simplex. They are obtained via parameter derivatives of the classical Jacobi polynomials Pn(α,β)(x) with respect to their parameters.
Aktaş Rabia
doaj   +1 more source

Jacobi polynomials as generalized Faber polynomials [PDF]

open access: yesTransactions of the American Mathematical Society, 1990
Let B {\mathbf {B}}
openaire   +1 more source

Properties of the Polynomials Associated with the Jacobi Polynomials [PDF]

open access: yesMathematics of Computation, 1986
Power forms and Jacobi polynomial forms are found for the polynomials W n (
openaire   +2 more sources

On the Behaviour of Zeros of Jacobi Polynomials

open access: yesJournal of Approximation Theory, 2002
Denoting by \(x_{n,k}(\alpha,\beta)\) and \(x_{n,k}(\lambda)= x_{n,k} (\lambda-1/2, \lambda-1/2)\) the zeros, in decreasing order, of the Jacobi polynomial \(P_n^{(\alpha,\beta)} (x)\) and of the ultraspherical (or Gegenbauer) polynomial \(C_n^\lambda(x)\), respectively, the authors investigate the monotonicity of \(x_{n,k}(\alpha,\beta)\) as functions
Dimitar K. Dimitrov 0001   +1 more
openaire   +4 more sources

New Biparametric Families of Apostol-Frobenius-Euler Polynomials level-m

open access: yesМатематичні Студії, 2021
We introduce two biparametric families of Apostol-Frobenius-Euler polynomials of level-$m$. We give some algebraic properties, as well as some other identities which connect these polynomial class with the generalized $\lambda$-Stirling type numbers of ...
D. Bedoya   +3 more
doaj   +1 more source

Iterated Integrals of Jacobi Polynomials [PDF]

open access: yesBulletin of the Malaysian Mathematical Sciences Society, 2019
Let P(α,β)n be the n-th monic Jacobi polynomial with α,β>−1. Given m numbers ω1,…,ωm∈C∖[−1,1], let Ωm=(ω1,…,ωm) and P(α,β)n,m,Ωm be the m-th iterated integral of (n+m)!n!P(α,β)n normalized by the conditions dkP(α,β)n,m,Ωmdzk(ωm−k)=0, for k=0,1,…,m−1. The main purpose of the paper is to study the algebraic and asymptotic properties of the sequence of ...
Hector Pijeira-Cabrera   +1 more
openaire   +2 more sources

On the Limit from q-Racah Polynomials to Big q-Jacobi Polynomials

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
A limit formula from q-Racah polynomials to big q-Jacobi polynomials is given which can be considered as a limit formula for orthogonal polynomials.
Tom H. Koornwinder
doaj   +1 more source

Cariñena polynomials are Jacobi polynomials

open access: yes, 2009
first ...
Vignat, C., Lamberti, P. W.
openaire   +2 more sources

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