The degree of trigonometric approximation of continuous functions, which are periodic with respect to the hexagon lattice, is estimated in uniform and Hölder norms. Approximating trigonometric polynomials are matrix means of hexagonal Fourier series
AbstractTrigonometric polynomials induced by equioscillation with respect to a given periodic functi...
This thesis presents new numerical algorithms for approximating functions by trigonometric polynomia...
AbstractIn this paper, the author has investigated trigonometrical polynomials associated with f∈Lip...
The degree of trigonometric approximation of continuous functions, which are periodic with respect t...
AbstractThis note generalizes estimates in [8] for approximation of periodic functions by Fourier su...
AbstractWe generalize the classical Jackson–Bernstein constructive description of Hölder classes of ...
Some results on approximation of periodic functions are extended in two directions: Improving the de...
Some approximation properties of hexagonal Fourier series are investigated. The order of approximati...
AbstractGiven a function f in the class Lip(α,p) (0<α⩽1,p⩾1), Chandra [P. Chandra, Trigonometric app...
In this paper we obtain a degree of approximation of functions in Lq by operators associated with th...
Trigonometric Fourier series are transformed into: (1) alternating series with terms of finite sums ...
summary:We show that the same degree of approximation as in the theorems proved by L. Leindler [Trig...
AbstractWe define a trigonometric spline convolution operator and give a quantitative estimate for t...
AbstractWe obtain optimal trigonometric polynomials of a given degree N that majorize, minorize and ...
AbstractIn this paper we obtain the degree of approximation of signals (functions) belonging to Lip(...
AbstractTrigonometric polynomials induced by equioscillation with respect to a given periodic functi...
This thesis presents new numerical algorithms for approximating functions by trigonometric polynomia...
AbstractIn this paper, the author has investigated trigonometrical polynomials associated with f∈Lip...
The degree of trigonometric approximation of continuous functions, which are periodic with respect t...
AbstractThis note generalizes estimates in [8] for approximation of periodic functions by Fourier su...
AbstractWe generalize the classical Jackson–Bernstein constructive description of Hölder classes of ...
Some results on approximation of periodic functions are extended in two directions: Improving the de...
Some approximation properties of hexagonal Fourier series are investigated. The order of approximati...
AbstractGiven a function f in the class Lip(α,p) (0<α⩽1,p⩾1), Chandra [P. Chandra, Trigonometric app...
In this paper we obtain a degree of approximation of functions in Lq by operators associated with th...
Trigonometric Fourier series are transformed into: (1) alternating series with terms of finite sums ...
summary:We show that the same degree of approximation as in the theorems proved by L. Leindler [Trig...
AbstractWe define a trigonometric spline convolution operator and give a quantitative estimate for t...
AbstractWe obtain optimal trigonometric polynomials of a given degree N that majorize, minorize and ...
AbstractIn this paper we obtain the degree of approximation of signals (functions) belonging to Lip(...
AbstractTrigonometric polynomials induced by equioscillation with respect to a given periodic functi...
This thesis presents new numerical algorithms for approximating functions by trigonometric polynomia...
AbstractIn this paper, the author has investigated trigonometrical polynomials associated with f∈Lip...