Results 21 to 30 of about 939,916 (117)

A Linear Map Acts as a Leonard Pair with Each of the Generators of U(sl2)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2020, Issue 1, 2020., 2020
Let ℱ denote an algebraically closed field with a characteristic not two. Fix an integer d ≥ 3; let x, y, and z be the equitable basis of sl2 over ℱ. Let V denote an irreducible sl2‐module with dimension d + 1; let A ∈ End(V). In this paper, we show that if each of the pairs A, x, A, y, and A, z acts on V as a Leonard pair, then these pairs are of ...
Hasan Alnajjar, Luca Vitagliano
wiley   +1 more source

Application of Polynomial Chaos Expansion to Optimize Injection‐Production Parameters under Uncertainty

open access: yesMathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
The optimization of oil field development scheme considering the uncertainty of reservoir model is a challenging and difficult problem in reservoir engineering design. The most common method used in this regard is to generate multiple models based on statistical analysis of uncertain reservoir parameters and requires a large number of simulations to ...
Liang Zhang   +7 more
wiley   +1 more source

A characterization of Askey-Wilson polynomials

open access: yesProceedings of the American Mathematical Society, 2019
We show that the only monic orthogonal polynomials { P n
Nangho, Maurice Kenfack   +1 more
openaire   +4 more sources

Efficient algorithms for construction of recurrence relations for the expansion and connection coefficients in series of quantum classical orthogonal polynomials

open access: yesJournal of Advanced Research, 2010
Formulae expressing explicitly the q-difference derivatives and the moments of the polynomials Pn(x ; q) ∈ T (T ={Pn(x ; q) ∈ Askey–Wilson polynomials: Al-Salam-Carlitz I, Discrete q-Hermite I, Little (Big) q-Laguerre, Little (Big) q-Jacobi, q-Hahn ...
Eid H. Doha, Hany M. Ahmed
doaj   +1 more source

The associated Askey-Wilson polynomials [PDF]

open access: yesTransactions of the American Mathematical Society, 1991
The most general system of basic hypergeometric orthogonal polynomials are the Askey-Wilson polynomials, which are given as a basic hypergeometric series \(_ 4\Phi_ 3\). Like all orthogonal polynomials they satisfy a three-term recurrence relation \[ 2xp_ n(x)=A_ np_{n+1}(x)+B_ np_ n(x)+C_ np_{n-1}(x). \] The recurrence coefficients \(A_ n\), \(B_ n\),
Ismail, Mourad E. H., Rahman, Mizan
openaire   +1 more source

Befriending Askey–Wilson polynomials [PDF]

open access: yesInfinite Dimensional Analysis, Quantum Probability and Related Topics, 2014
We recall five families of polynomials constituting a part of the so-called Askey–Wilson scheme. We do this to expose properties of the Askey–Wilson (AW) polynomials that constitute the last, most complicated element of this scheme. In doing so we express AW density as a product of the density that makes q-Hermite polynomials orthogonal times a ...
openaire   +2 more sources

Diagonalization of the Heun-Askey-Wilson operator, Leonard pairs and the algebraic Bethe ansatz

open access: yesNuclear Physics B, 2019
An operator of Heun-Askey-Wilson type is diagonalized within the framework of the algebraic Bethe ansatz using the theory of Leonard pairs. For different specializations and the generic case, the corresponding eigenstates are constructed in the form of ...
Pascal Baseilhac, Rodrigo A. Pimenta
doaj   +1 more source

On First type characterizations of Askey-Wilson polynomials [PDF]

open access: yes, 2023
In this chapter we characterize Askey-Wilson polynomials including specific and limiting cases of them by some structure relations of the first type.Comment: arXiv admin note: text overlap with arXiv:2301 ...
Mbouna, D., Suzuki, A.
core   +1 more source

Application of Galerkin Method to Kirchhoff Plates Stochastic Bending Problem

open access: yesInternational Scholarly Research Notices, Volume 2014, Issue 1, 2014., 2014
In this paper, the Galerkin method is used to obtain approximate solutions for Kirchhoff plates stochastic bending problem with uncertainty over plates flexural rigidity coefficient. The uncertainty in the rigidity coefficient is represented by means of parameterized stochastic processes. A theorem of Lax‐Milgram type, about existence and uniqueness of
Cláudio Roberto Ávila da Silva Júnior   +5 more
wiley   +1 more source

Additional Recursion Relations, Factorizations, and Diophantine Properties Associated with the Polynomials of the Askey Scheme

open access: yesAdvances in Mathematical Physics, Volume 2009, Issue 1, 2009., 2009
In this paper, we apply to (almost) all the “named” polynomials of the Askey scheme, as defined by their standard three‐term recursion relations, the machinery developed in previous papers. For each of these polynomials we identify at least one additional recursion relation involving a shift in some of the parameters they feature, and for several of ...
M. Bruschi   +3 more
wiley   +1 more source

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