H. Berens

发表

G. G. Lorentz and Approximation Theory

H. Berens, 1997 .

l -1 summability of multiple Fourier integrals and positivity

Yuan Xu, H. Berens, 1997 .

On pointwise Turán's problem for positive definite functions

V. Arestov, H. Berens, E. Berdysheva, 2003 .

Nonuniqueness and selections in spline approximation

G. Nürnberger, H. Berens, 1990 .

Multivariate Gaussian cubature formulae

Yuan Xu, H. J. Schmid, Yuan Xu, 1995 .

Fejér means for multivariate Fourier series

Yuan Xu, Yuan Xu, Hubert Berens, 1996 .

ON THE BEST APPROXIMATION FOR SINGULAR IN- TEGRALS BY LAPLACE-TRANSFORM METHODS BY HUBERT BERENS AND P. L. BUTZER

P. Butzer, H. Berens, 2007 .

On the Best Approximation for Singular Integrals by Laplace — Transform Methods

P. Butzer, H. Berens, 1964 .

Geometric theory of Korovkin sets

G. Lorentz, H. Berens, 1975 .

Sequences of contractions on L1-spaces☆

G. Lorentz, H. Berens, 1974 .

On the Number of Nodes of Odd Degree Cubature Formulae for Integrals with Jacobi Weights on a Simplex

H. Berens, H. Schmid, 1992 .

Hoffman's Error Bounds and Uniform Lipschitz Continuity of Bestlp-Approximations

Yuan Xu, Yuan Xu, Wu Li, 1997 .

Semi-groups of operators and approximation

Paul L. Butzer, Hubert Berens, P. Butzer, 1967 .

On l-1 riesz summability of the inverse Fourier integral

Yuan Xu, H. Berens, Zhongkai Li, 2001 .

Quantitative Korovkin theorems for positive linear operators on _{}-spaces

R. DeVore, R. DeVore, H. Berens, 1978 .

A contribution to a theorem of Ulam and Mazur

Walter Benz, Hubert Berens, H. Berens, 1987 .

Approximation theorems for semi-group operators in intermediate spaces

P. Butzer, H. Berens, 1964 .

ON ACCRETIVE OPERATORS ON /~

H. Berens, L. Hetzelt, 2012 .

On accretive operators on $l^\infty_n$.

H. Berens, L. Hetzelt, 1986 .

Hypergeometric functions as a tool for summability of the Fourier integral

W. Castell, H. Berens, 1998 .

A Problem in Linear Matrix Approximation

H. Berens, M. Finzel, 1995 .

A Continuous Selection of the Metric Projection in Matrix Spaces

H. Berens, M. Finzel, 1987 .

Theorems of Korovkin Type for Positive Linear Operators on Banach Lattices

G. Lorentz, H. Berens, 1997 .

K-moduli, moduli of smoothness, and Bernstein polynomials on a simplex

Yuan Xu, Yuan Xu, Hubert Berens, 1991 .

Bernstein-Durrmeyer polynomials on a simplex

Yuan Xu, H. J. Schmid, Yuan Xu, 1992 .

Pointwise saturation of positive operators

H. Berens, 1972 .

POSITIVE LINEAR OPERATORS ON L -SPACES

H. Berens, 2016 .

On a Discrete Turán Problem for ℓ-1 Radial Functions

H. Berens, E. Berdysheva, 2014 .

Korovkin Theorems for Sequences of Contractions on LP-Spaces

G. Lorentz, H. Berens, 1974 .