Results 61 to 70 of about 147 (140)

On discrete q-ultraspherical polynomials and their duals

open access: yesJournal of Mathematical Analysis and Applications, 2005
We show that a confluent case of the big q-Jacobi polynomials P_n(x;a,b,c;q), which corresponds to a=b=-c, leads to a discrete orthogonality relation for imaginary values of the parameter a (outside of its commonly known domain 01, this family represents yet another q-extension of these classical polynomials, different from the continuous q ...
Atakishiyev, N.M., Klimyk, A.U.
openaire   +3 more sources

Analysis of linear capillary gravity wave scattering by a submerged plate over an asymmetrical trench

open access: yesMathematics in Applied Sciences and Engineering
To protect a harbor from the open sea, one can consider a sustainable construction of breakwater in the form of a submerged vertical thin barrier over an asymmetric rectangular trench.
Rumpa Chakraborty, Mampi Majhi
doaj   +1 more source

Monotonicity Properties of the Zeros of Ultraspherical Polynomials

open access: yesJournal of Approximation Theory, 1999
Let \(x_{n,k}^{(\lambda)}\), \(k=1,2,\dots,[n,2]\), denote the \(k\)-th positive zero in increasing order of the ultraspherical polynomial \(P_n^{(\lambda)}(x)\). The authors prove that the function \([\lambda+(2n^2+1)/(4n+2)]^{1/2}x_{n,k}^{(\lambda)}\) is increasing for \(\lambda>-1/2\). This proves the Ismail-Letessier-Askey conjecture [\textit{M. E.
Elbert, Árpád   +1 more
openaire   +2 more sources

Estimates for polynomials orthogonal with respect to some Gegenbauer–Sobolev type inner product

open access: yesJournal of Inequalities and Applications, 1999
In this paper we obtain some estimates in for orthogonal polynomials with respect to an inner product of Sobolev-type where Finally, the asymptotic behavior of such polynomials in is analyzed.
Osilenker Boris P   +2 more
doaj  

Finite free convolutions of polynomials. [PDF]

open access: yesProbab Theory Relat Fields, 2022
Marcus AW, Spielman DA, Srivastava N.
europepmc   +1 more source

On p-harmonic self-maps of spheres. [PDF]

open access: yesCalc Var Partial Differ Equ, 2023
Branding V, Siffert A.
europepmc   +1 more source

Toeplitz forms and ultraspherical polynomials [PDF]

open access: yesPacific Journal of Mathematics, 1966
Davis, Jeffrey, Hirschman, I. I.
openaire   +3 more sources

Zeros of quasi-orthogonal ultraspherical polynomials

open access: yesIndagationes Mathematicae, 2016
It is known that the zeros of orthogonal polynomials of successive degrees interlace on the interval of orthogonality. This paper investigates ultraspherical polynomials \(C_n^{(\lambda)}\) orthogonal with respect to the weight function \((1-x^2)^{\lambda-1/2}\) on the interval \([-1,1]\).
Driver, Kathy, Muldoon, Martin E.
openaire   +1 more source

Duffin and Schaeffer Type Inequality for Ultraspherical Polynomials

open access: yesJournal of Approximation Theory, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bojanov, Borislav, Nikolov, Geno
openaire   +1 more source

Task-dependent optimal representations for cerebellar learning. [PDF]

open access: yesElife, 2023
Xie M   +3 more
europepmc   +1 more source

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