Results 71 to 80 of about 214 (120)

Generating functions and companion symmetric linear functionals [PDF]

open access: yes, 2003
14 pages, no figures.-- MSC2000 codes: 33C45, 42C05.MR#: MR2004670 (2004i:33016)Zbl#: Zbl 1047.33004In this contribution we analyze the generating functions for polynomials orthogonal with respect to a symmetric linear functional u, i.e., a linear ...
Marcellán, Francisco   +6 more
core   +1 more source

Bivariate q-Laguerre–Appell polynomials and their applications

open access: yesApplied Mathematics in Science and Engineering
Recently, the monomiality principle has been extended to q-polynomials, namely, the q-monomiality principle of q-Appell polynomials has been considered.
Mohammed Fadel   +3 more
doaj   +1 more source

Върху някои редове на якоби

open access: yes, 2011
Георги С. Бойчев - Настоящата статия съдържа свойства на някои редове на Якоби.The paper presents properties of some Jacobi series. 2000 Mathematics Subject Classification: 33C45, 40G05.The second author is partially supported by the Research Sector of ...
Boychev, Georgi
core  

Characterization of the Dᵂ-Laguerre-Hahn functionals [PDF]

open access: yes, 2002
29 pages, no figures.-- MSC2000 codes: 33C45, 39A10.MR#: MR1914598 (2003e:33021)Zbl#: Zbl 1021.33007We give some characterization theorems for the DᵂLaguerre-Hahn linear functionals and we extend the concept of the class of the usual Laguerre-Hahn ...
Foupouagnigni, M.   +4 more
core   +1 more source

Modifications of quasi-definite linear functionals via addition of delta and derivatives of delta Dirac functions [PDF]

open access: yes, 2004
20 pages, no figures.-- MSC2000 codes: 33C45, 33A65, 42C05.MR#: MR2061464 (2005b:33007)Zbl#: Zbl 1089.33005We consider the general theory of the modifications of quasi-definite linear functionals by adding discrete measures.
Marcellán, Francisco   +8 more
core   +1 more source

Second structure relation for semiclassical orthogonal polynomials [PDF]

open access: yes, 2007
18 pages, no figures.-- MSC2000 codes: 42C05; 33C45.MR#: MR2289233 (2009a:33013)Zbl#: Zbl 1125.33008Classical orthogonal polynomials are characterized from their orthogonality and by a first or second structure relation.
Marcellán, Francisco   +4 more
core   +1 more source

On an extension of symmetric coherent pairs of orthogonal polynomials [PDF]

open access: yes, 2005
14 pages, no figures.-- MSC2000 codes: Primary 33C45; 42C05.-- Issue title: "Proceedings of the Seventh International Symposium on Orthogonal Polynomials,Special Functions and Applications" (University of Copenhagen, Denmark, Aug 18-22, 2003).MR ...
Marcellán, Francisco   +2 more
core   +1 more source

On a modified operator associated with x 4/3: asymptotic analysis and improved order of approximation

open access: yesDemonstratio Mathematica
In this work, we introduce a new operator M n, constructed using a partial differential equation, that is structurally similar to that of the exponential-type operator G n associated with p(x) = x 4/3, x ∈ (0, ∞). However, unlike G n, the operator M n is
Gupta Vijay   +2 more
doaj   +1 more source

Uniform Asymptotics of Orthogonal Polynomials Arising from Coherent States

open access: yes, 2015
. In this paper, we study a family of orthogonal polynomials {φn(z)} arising from nonlinear coherent states in quantum optics. Based on the three-term recurrence relation only, we obtain a uniform asymptotic expansion of φn(z) as the polynomial degree n ...
Dai, D.   +5 more
core   +1 more source

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