Development in series of orthogonal polynomials with applications in optimization.
Die Metrische Struktur der Sonnen in l...(n).
Differentiability of the distance function and points of multi-valuedness of the metric projection in Banach space
Dispersed Chebyshev Sets and Coverings by Balls.
Eberlein integral and polynomial interpolation
Efficient L2 Approximation by Splines.
Ein Abstiegsverfahren für Approximationsaufgaben in normierten Räumen.
Eine Aussage über Alternanten.
Eine Iterationsmethode zur mehrdimensionalen gleichmäßigen Approximation bei gegebener Näherung.
Équation d’évolution sur , avec condition en plusieurs points
Estimations des erreurs de meilleure approximation polynomiale et d'interpolation de Lagrange dans les espaces de Sobolev d'ordre non entier.
Existence of best approximations
Exponential approximation on the real line
Extended Chebyshev systems for the expansions of exp (At).
Extension of the best approximation operator in Orlicz spaces and weak-type inequalities.
Farthest points in normed linear spaces.
Functional characterization of best and good approximation in normed product spaces.
In [6], C. Dierick deals with a small but important collection of norms in the product of a finite number of normed linear spaces and he extends to such products some results on functional characterization of best approximations. In this paper we establish the widest scope in which the mentioned results remain valid.
Geometry of regular plane sets and Chebyshev system theory.
Indirect approximation theorems in -metrics
Inequalities for the Interpolation Points in Chebyshev Approximation by Polynomials.