Results 81 to 90 of about 206 (163)

Generalized weighted Sobolev spaces and applications to Sobolev orthogonal polynomials: a survey [PDF]

, 2006
6 pages, no figures.-- MSC2000 codes: 41A10, 46E35, 46G10.MR#: MR2219917 (2006k:42051)Zbl#: Zbl 1146.42005In this paper we present a definition of Sobolev spaces with respect to general measures, prove some useful technical results, some of them ...
Pestana, Domingo, Romera, Elena, Rodríguez, José M., Álvarez, Venancio   +3 more
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Approximation by q-analogue of modified Jakimovski-Leviatan-Stancu type operators

Demonstratio Mathematica, 2017
In this paper, we introduce the q-analogue of the Jakimovski-Leviatan type modified operators introduced by Atakut with the help of the q-Appell polynomials.We obtain some approximation results via the well-known Korovkin’s theorem for these operators.We
Mursaleen Mohammad, Nasiruzzaman Mohammad, Wafi Abdul   +2 more
doaj   +1 more source

Shapiro’s problem on polynomials with large partial sums of coefficients

Forum of Mathematics, Sigma
Given a polynomial $\sum _\nu a_\nu X^\nu $ of degree $
Marc Technau
doaj   +1 more source

© Hindawi Publishing Corp. ON THE CONVERGENCE PROPERTIES OF BASIC SERIES REPRESENTING CLIFFORD VALUED FUNCTIONS

, 2002
It is shown that certain classes of special monogenic functions cannot be repre-sented by the basic series in the whole space. New definitions for the order of basis of special monogenic polynomials are given, together with theorems on the representation
M. A. Abul-ez, D. Constales
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Generalized weighted Sobolev spaces and applications to Sobolev orthogonal polynomials, II [PDF]

, 2002
32 pages, no figures.-- MSC1987 codes: 41A10, 46E35, 46G10.-- Part I of this paper published in: Acta Appl. Math. 80(3): 273-308 (2004), available at: http://e-archivo.uc3m.es/handle/10016/6482MR#: MR1928169 (2003h:42034)Zbl#: Zbl 1095.42014^aWe present ...
José M. Rodríguez, Pestana, Domingo, Elena Romera, Romera, Elena, Venancio Alvarez, Rodríguez, José M., Álvarez, Venancio, Domingo Pestana   +7 more
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Univariate right fractional polynomial high order monotone approximation

Demonstratio Mathematica, 2016
Let f ∈ Cr([−1,1]), r ≥ 0 and let L* be a linear right fractional differential operator such that L*(f) ≥ 0 throughout [−1,0]. We can find a sequence of polynomials Qn of degree ≤ n such that L*(Qn) ≥ 0 over [−1,0], furthermore f is approximated right ...
Anastassiou George A.
doaj   +1 more source

Generalized weighted Sobolev spaces and applications to Sobolev orthogonal polynomials, I [PDF]

, 2004
36 pages, no figures.-- MSC2000 codes: 41A10, 46E35, 46G10.-- Part II of this paper published in: Approx. Theory Appl. 18(2): 1-32 (2002), available at: http://e-archivo.uc3m.es/handle/10016/6483MR#: MR2047389 (2005k:42062)Zbl#: Zbl 1081.42024In this ...
Pestana, Domingo, Romera, Elena, Rodríguez, José M., Álvarez, Venancio   +3 more
core   +1 more source

A real variable characterization of Gromov hyperbolicity of flute surfaces [PDF]

, 2008
23 pages, 1 figure.-- MSC2000 codes: 41A10, 46E35, 46G10.-- ArXiv pre-print available at: http://arxiv.org/abs/0806.0093Previously presented as Communication at International Congress of Mathematicians 2006 (ICM2006, Madrid, Spain, Aug 22-30, 2006 ...
Tourís, Eva, Rodríguez, José M., Portilla, Ana   +2 more
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Simulating accurate and effective solutions of some nonlinear nonlocal two-point BVPs: Clique and QLM-clique matrix methods. [PDF]

Heliyon, 2023
Izadi M, Singh J, Noeiaghdam S.
europepmc   +1 more source

Superdense unbounded divergence of a class of interpolatory product quadrature formulas: Dedicated to Professor Gheorghe Coman on the occasion of his 80th anniversary

, 2016
. The aim of this paper is to highlight the superdense unbounded divergence of a class of product quadrature formulas of interpolatory type on Jacobi nodes, associated to the Banach space of all real continuous functions defined on [-1; 1], and to a ...
MITREA, Alexandru I.
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