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 2021-06-01 to 2025-06-01.)

Article	Citations
Editorial	40
The Lebesgue constants for Leja points are subexponential	10
Some aspects of the Bergman and Hardy spaces associated with a class of generalized analytic functions	10
A CMV connection between orthogonal polynomials on the unit circle and the real line	8
Uniform convergence of Fourier–Jacobi series to absolutely continuous functions	8
Editorial Board	7
On maximal autocorrelations of Rudin–Shapiro sequences	7
Asymptotic correlations with corrections for the circular Jacobi β-ens	7
On a conjecture concerning interpolation by bivariate Bernstein polynomials	7
On(β,γ)	7
Approximating the derivative of manifold-valued functions	6
Editorial Board	6
Counterexamples in isometric theory of symmetric and greedy bases	5
Editorial Board	5
On the asymptotic behavior of Jacobi polynomials with first varying parameter	5
Approximation of functions with small mixed smoothness in the uniform norm	5
Comonotone approximation of periodic functions	4
Optimal heat kernel bounds and asymptotics on Damek–Ricci spaces	4
A family of orthogonal polynomials corresponding to Jacobi matrices with a trace class inverse	4
Editorial Board	4
Explicit bounds for even moments of Bernstein’s polynomials	4
Minimal projections onto subspaces generated by sign-matrices	4
Is hyperinterpolation efficient in the approximation of singular and oscillatory functions?	4
Besov spaces with generalized smoothness and summability of multiple Fourier series	3
Strictly positive definite functions on spheres	3

Estimates for the modulus of continuity in the Jacobi frame	3
Wavelet characterization of Triebel–Lizorkin spaces for p	3
Extremal polynomials on the n-grid	3
Absorbing–reflecting factorizations for birth–death chains on the integers and their Darboux transformations	3
Bernstein inequality on conic domains and triangles	3
Asymptotically optimal cubature formulas on manifolds for prefixed weights	3
Richard S. Varga October 9, 1928 – February 25, 2022	3
Scaling limits of complex and symplectic non-Hermitian Wishart ensembles	3
Bernstein-type constants for approximation of \|	3
Editorial Board	3
Mean convergence of Fourier–Akhiezer–Chebyshev series	3
Spectral properties of a class of Moran measures on 3
A superposition theorem of Kolmogorov type for bounded continuous functions	3
On some measures of non-compactness associated to Banach operator ideals	3
Discrete harmonic analysis associated with Jacobi expansions III: The Littlewood–Paley–Stein	3
Editorial Board	2
Lower bounds for piecewise polynomial approximations of oscillatory functions	2
On C. Michel’s hypothesis about the modulus of typically real polynomials	2
Optimization-aided construction of multivariate Chebyshev polynomials	2
Convergence in distribution of the Bernstein–Durrmeyer kernel and pointwise convergence of a generalised operator for functions of bounded variation	2
Editorial Board	2
s-Numbers of embeddings of weighted Wiener algebras	2
Nonlinear steepest descent approach to orthogonality on elliptic curves	2
Bispectral dual Hahn polynomials with an arbitrary number of continuous parameters	2
Spectral decomposition of H<	2
Editorial Board	2
Multivariate polynomial splines on generalized oranges	2
Asymptotic analysis of a family of Sobolev orthogonal polynomials related to the generalized Charlier polynomials	2
Editorial Board	2
On the condition of cubic B-splines	2
Orthogonal polynomials for self-dual weights	2
Absolute minima of potentials of certain regular spherical configurations	2
Polynomial approximation on disjoint segments and amplification of approximation	2
Extended best Lp	2
Uniformly bounded Lebesgue constants for scaled cardinal interpolation with Matérn kernels	2
Editorial Board	2
Intrinsic interpolation, near-circularity and maximal convergence	2
In memory of Peter Borwein	2
On approximation by rational functions in Musielak–Orlicz spaces	2
Editorial Board	2
Approximating properties of metric and generalized metric projections in uniformly convex and uniformly smooth Banach spaces	2
Compact cubic splines	2
Editorial Board	2
A statistical learning assessment of Huber regression	2
Estimates for entropy numbers of sets of smooth functions on complex spheres	2
Remembering Peter Benjamin Borwein (May 10, 1953–August 23, 2020)	2