Best Uniform Approximation from a Collection of Subspaces.
Beste Quadraturformeln für Integrale mit einer Gewichtsfunktion.
Bicontractive projections in sequence spaces and a few related kinds of maps
Bigradients, Hankel determinants and the Newton-Padé table.
Bilinear interpolation in triangles based upon a Mangeron theorem.
Biorthogonal multiresolution analyses and decompositions of Sobolev spaces.
Biquadratic spline smoothing mean values
Biquadratic splines interpolating mean values
Continuity conditions for a biquadratic spline interpolating given mean values in terms of proper parameters are given. Boundary conditions determining such a spline and the algorithm for computing local parameters for the given data are studied. The notion of the natural spline and its extremal property is mentioned.
Bivariate Hermite Interpolation and Applications to Algebaric Geometry.
Bivariate operators of Schurer-Stancu type.
Bivariate Spline Functions and the Approximation of Linear Functionals.
Bleimann, Butzer, and Hahn operators based on the -integers.
BMO and Lipschitz approximation by solutions of elliptic equations
We consider the problem of qualitative approximation by solutions of a constant coefficients homogeneous elliptic equation in the Lipschitz and BMO norms. Our method of proof is well-known: we find a sufficient condition for the approximation reducing matters to a weak spectral synthesis problem in an appropriate Lizorkin-Triebel space. A couple of examples, evolving from one due to Hedberg, show that our conditions are sharp.
Boolean algebra and multivariate interpolation
Bornes de l'erreur dans l'approximation polynomiale avec contraintes d'interpolation
Boundaries of a Convex Set and Interpolation Sets.
Boundaries of convex sets.
Bounds for entropy and divergence for distributions over a two-element set.
Box-spline histograms for multivariate density estimation
The uniform approach to calculation of MISE for histogram and density box-spline estimators gives us a possibility to obtain estimators of derivatives of densities and the asymptotic constant.
B-rational curves and reparametrization : the quadratic case