OOIR: Observatory of International Research

Papers

(The TQCC of Journal of Approximation Theory is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-11-01 to 2024-11-01.)

Article	Citations
A statistical learning assessment of Huber regression	27
A novel class of stabilized greedy kernel approximation algorithms: Convergence, stability and uniform point distribution	21
Smoothness of subspace sections of the unit balls of C	10
Approximation of functions with small mixed smoothness in the uniform norm	9
Alternating projections, remotest projections, and greedy approximation	9
Spectra of a class of Cantor–Moran measures with three-element digit sets	9
Multiple orthogonal polynomials associated with confluent hypergeometric functions	8
Stable high-order randomized cubature formulae in arbitrary dimension	8
On the Borel summability of WKB solutions of certain Schrödinger-type differential equations	7
Approximation properties of periodic multivariate quasi-interpolation operators	6
Asymptotic correlations with corrections for the circular Jacobi β-ens	6
On the Widom factors for Lp	6
Norm estimates for Chebyshev polynomials, I	6
Recovery guarantees for polynomial coefficients from weakly dependent data with outliers	6
s-Numbers of embeddings of weighted Wiener algebras	5
Asymptotic behavior of Christoffel–Darboux kernel via three-term recurrence relation II	5
Nonlinear steepest descent approach to orthogonality on elliptic curves	5
Reconstruction of functions from prescribed proximal points	5
Uniformly bounded Lebesgue constants for scaled cardinal interpolation with Matérn kernels	4
Approximation theorems on graphs	4
Asymptotic behavior of orthogonal polynomials. Singular critical case	4
Hermite–Padé approximation and integrability	4
Kolmogorov widths of weighted Sobolev classes on a multi-dimensional domain with conditions on the derivatives of order 4
Asymptotically optimal cubature formulas on manifolds for prefixed weights	4
On the representing measures of Dunkl’s intertwining operator	4

On the spacing of zeros of paraorthogonal polynomials for singular measures	4
Factorization of Hermite subdivision operators from polynomial over-reproduction	4
An intersection representation for a class of anisotropic vector-valued function spaces	4
Weighted embeddings for function spaces associated with Hermite expansions	4
The differential equation for Jacobi–Sobolev orthogonal polynomials with two linear perturbutions	4
Sparse approximation of individual functions	3
Bilinear Fourier multipliers and the rate of decay of their derivatives	3
Matrix-valued orthogonal polynomials related to hexagon tilings	3
Approximation rate in Wasserstein distance of probability measures on the real line by deterministic empirical measures	3
Quasi-uniform designs with optimal and near-optimal uniformity constant	3
About families of orthogonal polynomials satisfying Heun’s differential equation	3
Approximation error for neural network operators by an averaged modulus of smoothness	3
On Gaussian kernels on Hilbert spaces and kernels on hyperbolic spaces	3
Kernel gradient descent algorithm for information theoretic learning	3
Asymptotics of sharp constants in Markov–Bernstein–Nikolskii type inequalities with exponential weights	3
Negative results in coconvex approximation of periodic functions	3
On(β,γ)	3
A simple upper bound for Lebesgue constants associated with Leja points on the real line	3
Error bounds for the method of simultaneous projections with infinitely many subspaces	3
Chebyshev unions of planes, and their approximative and geometric properties	3
A class of Sobolev orthogonal polynomials on the unit circle and associated continuous dual Hahn polynomials: Bounds, asymptotics and zeros	3
On the asymptotic behavior of Jacobi polynomials with first varying parameter	3
The Lebesgue constants for Leja points are subexponential	3
Chebyshev polynomials in the 16th century	2
Bernstein–Szegő inequality for trigonometric polynomials in	2
Estimates of entropy for multiplier operators of systems of orthonormal functions	2
A note on K-functional, Modulus of smoothness, Jackson theorem and Ber	2
Extremal polynomials on a Jordan arc	2
Signal separation under coherent dictionaries and ℓ	2
Markov-type inequalities and extreme zeros of orthogonal polynomials	2
Approximation, Gelfand, and Kolmogorov numbers of Schatten class embeddings	2
Entropy function and orthogonal polynomials	2
Explicit expressions and computational methods for the Fortet–Mourier distance of positive measures to finite weighted sums of Dirac measures	2
Geometric computation of Christoffel functions on planar convex domains	2
Asymptotic behavior and zeros of the Bernoulli polynomials of the second kind	2
Turán’s inequality, nonnegative linearization and amenability properties for associated symmetric Pollaczek polynomials	2
Randomized weakly admissible meshes	2
Fourier–Zernike series of compactly supported convolutions on S	2
About essential spectra of unbounded Jacobi matrices	2
Extended best Lp	2
Codimension 1 minimal projections onto the lines in L	2
Bernstein inequality on conic domains and triangles	2
Concentration inequalities for cross-validation in scattered data approximation	2
Measure of noncompactness of Sobolev embeddings on strip-like domains	2
Distributed learning and distribution regression of coefficient regularization	2
Localization for random CMV matrices	2
“Near-best” polynomial approximation of harmonic functions on compact sets in ℂ	2