Results 91 to 100 of about 128,877 (315)

A distributional study of discrete classical orthogonal polynomials

open access: yesJournal of Computational and Applied Mathematics, 1995
AbstractFor the sequences of discrete classical orthogonal polynomials (Charlier, Meixner, Hahn) we can find a functional u, which satisfies the difference distributional equation Δ(φu) = ψu where φ and ψ are polynomials of degrees ⩽2 and 1 respectively.
Francisco Marcellán   +2 more
openaire   +2 more sources

Who is willing to pay a premium for leafy greens produced by indoor agriculture? A comparative choice experiment with US consumers

open access: yesAgribusiness, EarlyView.
Abstract Indoor agriculture (IA) presents a pathway to producing leafy greens more sustainably by strictly controlling the growing environment, increasing the efficiency of water and land resources use, reducing pesticide application, and enhancing quality characteristics.
Joseph Seong   +3 more
wiley   +1 more source

Discrete orthogonal polynomials associated with Macdonald functions

open access: yesThe Ramanujan Journal, 2022
New sequences of discrete orthogonal polynomials associated with the modified Bessel function $K_ (z)$ or Macdonald function are considered. The corresponding weight function is $ ^k _{k+ +1}(t)/ k!$, where $\ k \in \mathbb{N}_0, \ t \ge 0,\ > -1,\ 0 < < 1,\ _ (z) = 2 z^{ /2} K_ \left( 2\sqrt z\right)$.
openaire   +2 more sources

On Orthogonality Relations for Dual Discrete q-Ultraspherical Polynomials [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2006
The dual discrete $q$-ultraspherical polynomials $D_n^{(s)}( (x;s)|q)$ correspond to indeterminate moment problem and, therefore, have one-parameter family of extremal orthogonality relations. It is shown that special cases of dual discrete $q$-ultraspherical polynomials $D_n^{(s)}( (x;s)|q)$, when $s=q^{-1}$ and $s=q$, are directly connected with $q^
Groza, V.A., Kachuryk, I.I.
openaire   +5 more sources

Circularity, Sustainability, and the Quality of Coffee Sold via Vending Machines: What Do Italian Consumers Prefer?

open access: yesAgribusiness, EarlyView.
ABSTRACT Vending is an important sector in the daily lives of many people, and coffee is the most frequently consumed product in the European market. Like many other sectors, vending is responding to the challenge of sustainable development by taking various actions, such as offering increasingly ecologically sound coffee while maintaining/improving ...
Alberto Bertossi   +2 more
wiley   +1 more source

On the properties for modifications of classical orthogonal polynomials of discrete variables [PDF]

open access: yesJournal of Computational and Applied Mathematics, 1995
We consider a modi cation of moment functionals for some classical polynomials of a discrete variable by adding a mass point at x = 0. We obtain the resulting orthogonal polynomials, identify them as hypergeometric functions and derive the second order di erence equation which these polynomials satisfy.
Álvarez Nodarse, Renato   +2 more
openaire   +2 more sources

The Impacts of Health and Environmental Information Nudges on Meat Choices: Where Does Goat Meat Fit?

open access: yesAgribusiness, EarlyView.
ABSTRACT Amidst a recent surge in US goat meat imports to meet growing demand, this study contributes to the meat demand literature by examining consumer preferences for goat meat, a relatively healthy and environmentally friendly alternative to other popular meats.
Binod Khanal   +2 more
wiley   +1 more source

Realizations of $su(1,1)$ and $U_q(su(1,1))$ and generating functions for orthogonal polynomials

open access: yes, 1998
Positive discrete series representations of the Lie algebra $su(1,1)$ and the quantum algebra $U_q(su(1,1))$ are considered. The diagonalization of a self-adjoint operator (the Hamiltonian) in these representations and in tensor products of such ...
Jagannathan, R., Van der Jeugt, J.
core   +2 more sources

On Polar Jacobi Polynomials

open access: yesMathematics
In the present work, we investigate certain algebraic and differential properties of the orthogonal polynomials with respect to a discrete–continuous Sobolev-type inner product defined in terms of the Jacobi measure.
Roberto S. Costas-Santos
doaj   +1 more source

$q$-Classical orthogonal polynomials: A general difference calculus approach

open access: yes, 2009
It is well known that the classical families of orthogonal polynomials are characterized as eigenfunctions of a second order linear differential/difference operator.
A.F. Nikiforov   +26 more
core   +4 more sources

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