Results 41 to 50 of about 1,000 (136)

H∞ interpolation constrained by Beurling–Sobolev norms

open access: yesMoroccan Journal of Pure and Applied Analysis, 2023
We consider a Nevanlinna–Pick interpolation problem on finite sequences of the unit disc, constrained by Beurling–Sobolev norms. We find sharp asymptotics of the corresponding interpolation quantities, thereby improving the known estimates. On our way we
Baranov Anton, Zarouf Rachid
doaj   +1 more source

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

open access: yes, 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 ...
Portilla, Ana   +2 more
core   +2 more sources

Some Approximation Properties of the (p, q)–Stancu–Schurer–Bleimann–Butzer–Hahn Operators

open access: yesJournal of Mathematics, Volume 2024, Issue 1, 2024.
In this article, the (p, q)–Stancu–Schurer–Bleimann–Butzer–Hahn ((p, q)‐SSBBH) operators are introduced. The Korovkin‐type theorem is obtained to show the approximation properties of these operators. Then, the rate of convergence of these operators with the help of the modulus of continuity and Lipschitz‐type maximal functions is calculated ...
Gülten Torun, Ljubisa Kocinac
wiley   +1 more source

Theoretical scheme on numerical conformal mapping of unbounded multiply connected domain by fundamental solutions method

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 24, Issue 2, Page 129-137, 2000., 2000
A potentially theoretical scheme in the fundamental solutions method, different from the conventional one, is proposed for numerical conformal mappings of unbounded multiply connected domains. The scheme is introduced from an algorithm on numerical Dirichlet problem, based on the asymptotic theorem on extremal weighted polynomials.
Tetsuo Inoue   +3 more
wiley   +1 more source

A New Generating Function of (q-) Bernstein Type Polynomials and their Interpolation Function

open access: yes, 2010
The main object of this paper is to construct a new generating function of the (q-) Bernstein type polynomials. We establish elementary properties of this function. By using this generating function, we derive recurrence relation and derivative of the (q-
Acikgoz, Mehmet, Simsek, Yilmaz
core   +2 more sources

Faster approximation to multivariate functions by combined Bernstein-Taylor operators

open access: yesDemonstratio Mathematica
In this article, we incorporate multivariate Taylor polynomials into the definition of the Bernstein operators to get a faster approximation to multivariate functions by these combined operators.
Duman Oktay
doaj   +1 more source

Adsorption of binary polymer mixtures with different topology on a wall

open access: yesResults in Physics, 2019
We consider a binary mixture of two polymers with different architecture, consisting of linear and cyclic chains. We study this system by performing extensive molecular dynamics computer simulations of bead-spring models, which possess the open-chain and
Francis M. Gaitho, Giuseppe Pellicane
doaj   +1 more source

Best Approximation and Moduli of Smoothness [PDF]

open access: yes, 2012
2010 Mathematics Subject Classification: 41A25, 41A10.The aim of this note is to present moduli of smoothness which are introduced by different schools of approximation for characterization of the best algebraic approximation.
Dimova Zapryanova, Teodora
core  

New moduli of smoothness

open access: yes, 2014
In this paper, we discuss various properties of the new modulus of smoothness \[ \omega^\varphi_{k,r}(f^{(r)},t)_p := \sup_{0 < h\leq t}\|\mathcal W^r_{kh}(\cdot) \Delta_{h\varphi(\cdot)}^k (f^{(r)},\cdot)\|_{L_p[-1,1]}, \] where $\mathcal W_\delta(x) = \
Kopotun, K. A.   +2 more
core   +1 more source

Chlodowsky variant of Bernstein-type operators on the domain

open access: yesOpen Mathematics
In the present paper, we deal with Bernstein-Chlodowsky type operators for approximating functions on the domain. We first present Bernstein-Chlodowsky type operators in two variables and then we discuss some examples of these operators under a domain ...
Serenbay Sevilay Kırcı   +1 more
doaj   +1 more source

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