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Listar por autor "Álvarez Nodarse, Renato"
Mostrando ítems 21-40 de 81
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Artículo
Jacobi-Sobolev-type orthogonal polynomials: second-order differential equation and zeros
Arvesú Carballo, Jorge; Álvarez Nodarse, Renato; Marcellán Español, Francisco; Pan, Ke-Lin (Elsevier, 1998-04-17)We obtain an explicit expression for the Sobolev-type orthogonal polynomials {Qn} associated with the inner product ...
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Artículo
Kink topology control by high-frequency external forces in nonlinear Klein-Gordon models
Álvarez Nodarse, Renato; Quintero, Niurka R.; Mertens, Franz G. (American Physical Society, 2014)A method of averaging is applied to study the dynamics of a kink in the damped double sine-Gordon equation driven by both ...
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Artículo
Limit relations between q-Krall type orthogonal polynomials
Álvarez Nodarse, Renato; Costas Santos, Roberto Santiago (Elsevier, 2006)In this paper, we consider a natural extension of several results related to Krall-type polynomials introducing a modification ...
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Artículo
Mellin transforms for some families of q-polynomials
Álvarez Nodarse, Renato; Atakishiyeva Kyazim Zade, Messouma; Atakishiyev Mektiyev, Natig (Elsevier, 2003-04-01)By using Ramanujan's q-extension of the Euler integral representation for the gamma function, we derive the Mellin integral ...
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Artículo
Modelos matemáticos en biología: un viaje de ida y vuelta
Álvarez Nodarse, Renato (Sociedad Española de Matemática Aplicada, 2006)El objetivo de este trabajo es mostrar la provechosa interacción entre la Biología y la Matemática. Para ello veremos ...
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Artículo
Modifications of quasi-definite linear functionals via addition of delta and derivatives of delta Dirac functions
Álvarez Nodarse, Renato; Arvesú Carballo, Jorge; Marcellán Español, Francisco (Elsevier, 2004)We consider the general theory of the modifications of quasi-definite linear functionals by adding discrete measures. We ...
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Artículo
Modified Clebsch-Gordan-type expansions for products of discrete hypergeometric polynomials
Álvarez Nodarse, Renato; Yáñez García, Rafael José; Sánchez Dehesa, Jesús (Elsevier, 1998-03-09)Starting from the second-order difference hypergeometric equation satisfied by the set of discrete orthogonal polynomials ...
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Artículo
On a modification of the Jacobi linear functional asymptotic properties and zeros of the corresponding orthogonal polynomials
Arvesú Carballo, Jorge; Marcellán Español, Francisco; Álvarez Nodarse, Renato (Springer, 2002-04)The paper deals with orthogonal polynomials in the case where the orthogonality condition is related to semiclassical ...
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Artículo
On a q-extension of the Hermite polynomials Hn(x) with the continuous orthogonality property on R1
Álvarez Nodarse, Renato; Atakishiyeva Kyazim Zade, Messouma; Atakishiyev Mektiyev, Natig (Sociedad Matemática Mexicana / Springer, 2002-10)We study a polynomial sequence of q-extensions of the classical Hermite polynomials Hn(x), which satisfi es continuous ...
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Artículo
On a q-extension of the linear harmonic oscillator with the continuous orthogonality property on R
Álvarez Nodarse, Renato; Atakishiyeva Kyazim Zade, Messouma; Atakishiyev Mektiyev, Natig (Springer, 2005-11)We discuss a q-analogue of the linear harmonic oscillator in quantum mechanics, based on a q-extension of the classical ...
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Artículo
On characterizations of classical polynomials
Álvarez Nodarse, Renato (Elsevier, 2006-11-01)It is well known that the classical families of Jacobi, Laguerre, Hermite, and Bessel polynomials are characterized as ...
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Artículo
On linearly related sequences of difference derivatives of discrete orthogonal polynomials
Álvarez Nodarse, Renato; Soares Petronilho, José Carlos; Pinzón Cortés, Natalia Camila; Sevinik Adigüzel, Rezan (Elsevier, 2015-08-15)Let ν be either ω ∈ C \ {0} or q ∈ C \ {0, 1}, and let Dν be the corresponding difference operator defined in the usual ...
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Ponencia
On q-polynomials and some of their applications
Álvarez Nodarse, Renato (2016) -
Artículo
On recurrence relations for radial wave functions for the N-th dimensional oscillators and hydrogenlike atoms: analytical and numerical study
Álvarez Nodarse, Renato; Cardoso, José Luis; Quintero, Niurka R. (2006)Using a general procedure for finding recurrence relations for hypergeometric functions and polynomials introduced by ...
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Artículo
On some tridiagonal k-Toeplitz matrices: algebraic and analytical aspects. Applications
Álvarez Nodarse, Renato; Soares Petronilho, José Carlos; Quintero, Niurka R. (Elsevier, 2005-12-15)In this paper we use the analytic theory for 2 and 3-Toeplitz matrices to obtain the explicit expressions for the eigenvalues, ...
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Artículo
On the "Favard theorem" and its extensions
Marcellán Español, Francisco; Álvarez Nodarse, Renato (Elsevier, 2001-01-15)In this paper we present a survey on the "Favard theorem" and its extensions.
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Artículo
On the connection and linearization problem for discrete hypergeometric q-polynomials
Álvarez Nodarse, Renato; Arvesú Carballo, Jorge; Yáñez García, Rafael José (Elsevier, 2001-05-01)In the present paper, starting from the second-order difference hypergeometric equation on the non-uniform lattice x(s) ...
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Artículo
On the generalized Askey-Wilson polynomials
Álvarez Nodarse, Renato; Sevinik Adigüzel, Rezan (Elsevier, 2013-06)In this paper a generalization of Askey-Wilson polynomials is introduced. These polynomials are obtained from the ...
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Artículo
On the Krall-type discrete polynomials
Álvarez Nodarse, Renato; Soares Petronilho, José Carlos (Elsevier, 2004-07-01)In this paper we present a unified theory for studying the so called Kralltype discrete orthogonal polynomials. In ...
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Artículo
On the Krall-type polynomials
Álvarez Nodarse, Renato; Arvesú Carballo, Jorge; Marcellán Español, Francisco (2004)Using a general and simple algebraic approach, some results on Krall-type orthogonal polynomials and some of their extensions are obtained.