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Publications Influence

Polynomial approximation on the sphere using scattered data

- F. Filbir, W. Themistoclakis
- Mathematics
- 1 May 2008

We consider the problem of approximately reconstructing a function f defined on the surface of the unit sphere in the Euclidean space ℝq +1 by using samples of f at scattered sites. A central role is… Expand

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Interpolating polynomial wavelets on [−1,1]

- M. R. Capobianco, W. Themistoclakis
- Mathematics, Computer Science
- Adv. Comput. Math.
- 1 November 2004

TLDR

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The boundedness of the Cauchy singular integral operator in weighted Besov type spaces with uniform norms

- G. Mastroianni, M. G. Russo, W. Themistoclakis
- Mathematics
- 1 March 2002

The mapping properties of the Cauchy singular integral operator with constant coefficients are studied in couples of spaces equipped with weighted uniform norms. Recently weighted Besov type spaces… Expand

18 1

Some Interpolating Operators of de la Vallée-Poussin Type

- W. Themistoclakis
- Mathematics
- 1 August 1999

We consider discrete versions of the de la Vallée-Poussin algebraic operator. We give a simple sufficient condition in order that such discrete operators interpolate, and in particular we study the… Expand

11 1

On the numerical solution of some nonlinear and nonlocal boundary value problems

- W. Themistoclakis, A. Vecchio
- Mathematics, Computer Science
- Appl. Math. Comput.
- 15 March 2015

TLDR

7 1

A numerical method for the generalized airfoil equation based on the de la Vallée Poussin interpolation

- G. Mastroianni, W. Themistoclakis
- Mathematics
- 1 August 2005

The authors consider the generalized airfoil equation in some weighted Holder-Zygmund spaces with uniform norms. Using a projection method based on the de la Vallee Poussin interpolation, they… Expand

13

On the Solution of a Class of Nonlinear Systems Governed by an -Matrix

- W. Themistoclakis, A. Vecchio
- Mathematics
- 8 June 2012

We consider a weakly nonlinear system of the form ( 𝐼 + 𝜑 ( 𝑥 ) 𝐴 ) 𝑥 = 𝑝 , where 𝜑 ( 𝑥 ) is a real function of the unknown vector 𝑥 , and ( 𝐼 + 𝜑 ( 𝑥 ) 𝐴 ) is an 𝑀 -matrix. We propose… Expand

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Generalized de la Vallée Poussin approximations on [−1, 1]

- W. Themistoclakis, M. Barel
- Mathematics, Computer Science
- Numerical Algorithms
- 1 May 2017

TLDR

13

Uniform approximation on [−1, 1] via discrete de la Vallée Poussin means

- W. Themistoclakis
- Mathematics, Computer Science
- Numerical Algorithms
- 1 August 2012

TLDR

8

Weighted L1 approximation on [-1, 1] via discrete de la Vallée Poussin means

- W. Themistoclakis
- Mathematics, Computer Science
- Math. Comput. Simul.
- 10 July 2017

TLDR

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