Results 51 to 60 of about 297 (88)
Convergencia relativa de polinomios ortogonales variantes [PDF]
, 2001 12 pages, no figures.-- MSC2000 codes: Primary: 42C05, 30E15; Secondary: 30E10.We consider the relative asymptotic behaviour of orthogonal polynomials with respect to varying measures supported on the real line and the unit circle.
López Lagomasino, Guillermo +1 more
core +2 more sources
A new numerical quadrature formula on the unit circle [PDF]
, 2007 11 pages, no figures.-- MSC2000 codes: 33C47, 42C05, 65D30.MR#: MR2335810 (2008i:33038)Zbl#: Zbl 1126.65023In this paper we study a quadrature formula for Bernstein–Szegö measures on the unit circle with a fixed number of nodes and unlimited exactness ...
Marcellán, Francisco +3 more
core +1 more source
On Laguerre-Sobolev matrix orthogonal polynomials
Open MathematicsIn this manuscript, we study some algebraic and differential properties of matrix orthogonal polynomials with respect to the Laguerre-Sobolev right sesquilinear form defined by ⟨p,q⟩S≔∫0∞p*(x)WLA(x)q(x)dx+M∫0∞(p′(x))*W(x)q′(x)dx,{\langle p,q\rangle }_ ...
Fuentes Edinson +2 more
doaj +1 more source
Pseudo-uniform convexity in Hp and some extremal problems on Sobolev spaces [PDF]
, 2003 12 pages, no figures.-- MSC2000 codes: 32A35; 42C05.MR#: MR1974380 (2004e:30074)Zbl#: Zbl 1173.30321We extend Newman and Keldysh theorems to the behavior of sequences of functions in Hp(μ) which explain geometric properties of discs in these spaces ...
Marcellán, Francisco +8 more
core +1 more source
New quadrature rules for Bernstein measures on the interval [-1,1] [PDF]
, 2008 13 pages, no figures.-- MSC2000 codes: 33C47, 42C05.MR#: MR2480082Zbl#: Zbl pre05602092In the present paper, we obtain quadrature rules for Bernstein measures on [-1, 1], having a fixed number of nodes and weights such that they exactly integrate ...
Marcellán, Francisco +4 more
core +2 more sources
General results on the convergence of multipoint Hermite-Padé approximants of Nikishin systems [PDF]
, 2007 19 pages, no figures.-- MSC1991 codes: Primary 30E10, 42C05.MR#: MR2263738 (2007g:42041)Zbl#: Zbl 1105.30024We consider simultaneous approximation of Nikishin systems of functions by means of rational vector functions which are constructed interpolating ...
López Lagomasino, Guillermo +1 more
core +1 more source
Some Coefficient Estimates for Polynomials on the Unit Interval [PDF]
, 2007 2000 Mathematics Subject Classification: 26C05, 26C10, 30A12, 30D15, 42A05, 42C05.In this paper we present some inequalities about the moduli of the coefficients of polynomials of the form f (x) : = еn = 0nan xn, where a0, ј, an О C.
Qazi, M. A., Rahman, Q. I.
core
The moments of the M/M/s queue length process [PDF]
, 2003 24 pages, no figures.-- MSC2000 codes: 60K25, 68J80, 42C05.MR#: MR1998083 (2004e:60152)Zbl#: Zbl 1035.90023A representation for the moments of the number of customers in a M/M/s queueing system is deduced from the Karlin and McGregor representation for ...
Marcellán, Francisco +2 more
core +1 more source
Δ-Coherent pairs and orthogonal polynomials of a discrete variable [PDF]
, 2003 27 pages, no figures.-- MSC1991 codes: 33C25; 42C05.MR#: MR1949214 (2003m:33009)Zbl#: Zbl 1047.42019In this paper we define the concept of D-coherent pair of linear functionals.
Marcellán, Francisco +3 more
core +1 more source
Fourier-Padé approximants for Angelesco systems [PDF]
, 2007 21 pages, no figures.-- MSC2000 codes: 30E10, 42C05.MR#: MR2335687 (2008j:41009)Zbl#: Zbl pre05215528We study linear and nonlinear simultaneous Fourier-Pade approximation for Angelesco systems of functions and give the exact rate of convergence ...
López Lagomasino, Guillermo +8 more
core +1 more source