On-line available papers

• Some estimates for convex polynomial approximation in $L_p$ (with Yingkang Hu and Xiang-Ming Yu)
• Approximation of Monotone Functions: A Counter Example (with Ronald A. DeVore and Igor A. Shevchuk)
• Nearly comonotone approximation (with Igor A. Shevchuk)
• On monotone and convex approximation by splines with free knots (with Aleksei Shadrin)
• Degree of simultaneous coconvex polynomial approximation (with K. Kopotun)
• Some positive results and counterexamples in comonotone approximation II (with Igor A. Shevchuk)
• Constants in comonotone polynomial approximation-- a survey (with Igor A. Shevchuk)
• Nearly comonotone approximation II (with Igor A. Shevchuk)
• More on comonotone polynomial approximation (with Igor A. Shevchuk)
• Interpolatory pointwise estimates for polynomial approximation (with Heinz H. Gonska, Igor A. Shevchuk and H.-Joerg Wenz)
• Shape-preserving approximation by polynomials
• Kolmogorov and linear widths of weighted Sobolev-type classes on a finite interval (with V. N. Konovalov)
• Kolmogorov and linear widths of weighted Sobolev-type classes on a finite interval II (with V. N. Konovalov)
• Estimates on the approximation of 3-monotone functions by 3-monotone quadratic splines (with V. N. Konovalov)
• Wavelet decompositions of non-refinable shift invariant spaces (with Shai Dekel)
• Shape-preserving widths of weighted Sobolev-type classes of positive, monotone, and convex functions on a finite interval (with V. N. Konovalov)
• Coconvex approximation (with Igor A. Shevchuk)
• Coconvex polynomial approximation (with Igor A. Shevchuk)
• On the relations between piecewise polynomial and rational approximation in $L_p(R^2)$ (with S. Dekel)
• On measuring the efficiency of kernel operators in $L_p(R^d)$ (with S. Dekel)
• Shape preserving widths of Sobolev-type classes of s-convex functions on a finite interval (with V. N. Konovalov)
• Free-knot splines approximation of s-monotone functions (with V. N. Konovalov)
• On bivariate smoothness spaces associated with nonlinear approximation (with S. Dekel and M. Sharir)
• The Bramble-Hilbert lemma for convex domains (with S. Dekel)
• Whitney estimates for convex domains with applications to multivariate piecewise polynomial approximation (with S. Dekel)
• Adaptive multivariate approximation using binary space partitions and geometric wavelets, (with S. Dekel)
• Simultaneous approximation by greedy algorithms (with V. N. Temlyakov)
• Simultaneous greedy approximation in Banach spaces (with V. N. Temlyakov)
• ``Convex approximation in the uniform norm: conclusion" (with K. Kopotun and I. A. Shevchuk)
• ``Coconvex approximation in the uniform norm: the final frontier" (with K. Kopotun and I. A. Shevchuk)
• ``On 3-monotone approximation by piecewise polynomials" (with A. V. Prymak)