spaces fail a certain approximative property.
expansions in series of fractional parts.
-approximation by iterative combination of Phillips operators.
approximation by multivariate Baskakov-Durrmeyer operator.
-approximation by the method of integral Meyer-König and Zeller operators
-approximation of generalized biaxially symmetric potentials over Carathéodory domains
-convergence of Bernstein-Kantorovich-type operators
We study a Kantorovich-type modification of the operators introduced in [1] and we characterize their convergence in the -norm. We also furnish a quantitative estimate of the convergence.
inequalities for the growth of polynomials with restricted zeros
Let be a polynomial of degree at most which does not vanish in the disk , then for and , Boas and Rahman proved In this paper, we improve the above inequality for by involving some of the coefficients of the polynomial . Analogous result for the class of polynomials having no zero in is also given.
inequalities for the polar derivative of a polynomial.
-inverse theorem for modified beta operators.
norm convergence of rational operators on the unit circle.
L1-Approximation to Zero.
L1-Approximation verallgemeinerter konvexer Funktionen durch Splines mit freien Knoten.
L2-approximation by the translates of a function and related attenuation factors.
La Fonctionnelle g Et Queloques Problèmes Des Meilleures Approximations Dans Des Espaces Normés
La Formula De Simpson Tridimensional.
Lacunary equi-statistical convergence of positive linear operators
In this paper, the concept of lacunary equi-statistical convergence is introduced and it is shown that lacunary equi-statistical convergence lies between lacunary statistical pointwise and lacunary statistical uniform convergence. Inclusion relations between equi-statistical and lacunary equi-statistical convergence are investigated and it is proved that, under some conditions, lacunary equi-statistical convergence and equi-statistical convergence are equivalent to each other. A Korovkin type approximation...
Lagrange interpolation and entire functions
Lagrange multipliers for higher order elliptic operators
In this paper, the Babuška’s theory of Lagrange multipliers is extended to higher order elliptic Dirichlet problems. The resulting variational formulation provides an efficient numerical squeme in meshless methods for the approximation of elliptic problems with essential boundary conditions.
Lagrange multipliers for higher order elliptic operators
In this paper, the Babuška's theory of Lagrange multipliers is extended to higher order elliptic Dirichlet problems. The resulting variational formulation provides an efficient numerical squeme in meshless methods for the approximation of elliptic problems with essential boundary conditions.