OOIR: Observatory of International Research

Papers

(The TQCC of Numerical Functional Analysis and Optimization 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 2021-04-01 to 2025-04-01.)

Article	Citations
On the Smoothness of the Solution of Fuzzy Volterra Integral Equations of the Second Kind with Weakly Singular Kernels	26
Dual Variable Inertial Accelerated Algorithm for Split System of Null Point Equality Problems	21
Preface	20
An Analytic and Numerical Analysis of Weighted Singular Cauchy Integrals with Exponential Weights on ℝ	19
Multiplier Sequence Spaces Defined by Statistical Summability and Orlicz-Pettis Theorem	17
Diametrically Relatively Nonexpansive Mappings and a Characterization of Proximal Normal Structure	16
General Summability Methods in the Approximation by Bernstein–Chlodovsky Operators	14
Minimax Theorem for Two Set-Valued Mappings with Nonconvex Domains	13
Generalized Riccati Operator Equations, Invariant Subspaces and Toeplitz Corona Problem	12
On a Gauss-Kummer Convergence Model	11
Identification of the Memory Order in Multi-Term Semilinear Subdiffusion	11
On the Type of Ill-Posedness of Generalized Hilbert Matrices and Related Operators	11
λ-Bernstein Operators Based on Pólya Distribution	11
A Convergence Analysis of the Iterated Lavrentiev Regularization Method under a Lipschitz Condition	10
Korneichuk-Stechkin Lemma, Ostrowski and Landau Inequalities, and Optimal Recovery Problems for L-Space Valued Functions	9
On Absolute Matrix Summability of Factored Infinite Series and Fourier Series	8
Fixed Point Theorems for Operators with Certain Condition in p-Uniformly Convex Metric Spaces	8
Penalty Method for a Class of Differential Hemivariational Inequalities with Application	8
Mean Inequalities for the Numerical Radius	8
Further Hilbert-Schmidt Numerical Radius Inequalities for 2 × 2 Operator Matrices	7
Self-Adaptive Extragradient Methods for Solving Variational Inequalities and Fixed Point Problems in 2-Uniformly Convex and Uniformly Smooth Banach Spaces	7
On a New Norm on the Space of Reproducing Kernel Hilbert Space Operators and Berezin Radius Inequalities	7
Semigroups of Composition Operators on Vector-Valued Hardy Spaces	7
A Novel Halpern-type Algorithm for a Monotone Inclusion Problem and a Fixed Points Problem on Hadamard Manifolds	6
Optimal Convergence of the Discrepancy Principle for Polynomially and Exponentially Ill-Posed Operators under White Noise	6

An Approach for Solving Split Common Fixed Point Problems with Multiple Output Sets That Uses Dynamic Step Sizes	6
Q-duals and Q-approximate duals of g-frames in Hilbert spaces	6
A New Dai-Liao Conjugate Gradient Method based on Approximately Optimal Stepsize for Unconstrained Optimization	6
Existence and Iterative Approximation of Hybrid Best Proximity Points for Set-Valued Mappings^*	6
Time Optimal Control Problem of the 3D Navier-Stokes-α Equations	5
fgh -Convex Functions and Entropy Bounds	5
Strong Convergence of Trajectories via Inertial Dynamics Combining Hessian-Driven Damping and Tikhonov Regularization for General Convex Minimizations	5
Finding the Best Proximity Point of Generalized Multivalued Contractions with Applications	5
Higher Order Difference Operators and Associated Relative Reproducing Kernel Hilbert Spaces	5
The Strong Stabilization of the State Fractional Derivative for Semi-Linear Systems	5
Iteratively Refined Image Reconstruction with Learned Attentive Regularizers	5
On k -WUR and its generalizations	5
A Relaxed Tseng’s Method-based Algorithm for Solving Split Variational Inequalities with Multiple Output Sets	5
A Source Identification Problem in a Bi-parabolic Equation: Convergence Rates and Some Optimal Results	4
The Study of the Solvability of Infinite Systems of Integral Equations via Measures of Noncompactness	4
Corrigendum	4
Box Constraints and Weighted Sparsity Regularization for Identifying Sources in Elliptic PDEs	4
Second-Order Optimality Conditions for Strict Pareto Minima and Weak Efficiency for Nonsmooth Constrained Vector Equilibrium Problems	4
Total Asymptotically Nonexpansive Mappings and Generalized Variational Inclusion Problems: Algorithmic and Analytical Approach	4
Editor’s Note	4
Two New Inertial Algorithms for Solving Variational Inequalities in Reflexive Banach Spaces	4
Multiple Solutions to p-Biharmonic Equations of Kirchhoff Type with Vanishing Potential	4
A Greedy Fixed-Point Method for Solving Variational Inequalities over the Fixed-Point Constraints	4
Dinkelbach Type Approximation Algorithms for Nonlinear Fractional Optimization Problems	4
Two Singularity Subtraction Schemes for a Class of Nonlinear Weakly Singular Integral Equations	4
A Halpern Type Iterative Scheme for a Finite Number of Mappings in Complete Geodesic Spaces with Curvature Bounded above	3
Uncertainty Principle for Gabor Transform on the Quaternionic Heisenberg Group	3
Nonsmooth Constraint Qualifications for Nonconvex Inequality Systems	3
A Priori Error Analysis for an Optimal Control Problem Governed by a Variational Inequality of the Second Kind	3
Optimal Control Results for Sobolev-Type Fractional Stochastic Volterra-Fredholm Integrodifferential Systems of Order ϑ ∈ (1, 2) via Sectorial Operators	3
Richardson Extrapolation Method on an Adaptive Grid for Singularly Perturbed Volterra Integro-Differential Equations	3
A Dynamical Splitting Method for Minimizing the Sum of Three Convex Functions	3
Incremental Quasi-Subgradient Method for Minimizing Sum of Geodesic Quasi-Convex Functions on Riemannian Manifolds with Applications	3
Construction of Fixed Points of Asymptotically Nonexpansive Mappings in Uniformly Convex Hyperbolic Spaces	3
Composition of Euler Scaling Functions with the Optimization Method for Fractional Hyperbolic and Reaction-Diffusion Equations with Nonlocal Boundary Conditions	3
Parseval Theorem and Plancherel Theorem on the Product Abstract Wiener Space	3
Statistical Convergence of Sequences of Functions in Neutrosophic Normed Spaces	3
Approximation of Periodic Functions of Bounded Variation by Some Positive Linear Operators	3
Bivariate Bernstein Chlodovsky Operators Preserving Exponential Functions and Their Convergence Properties	3
A Mehrotra Type Predictor-Corrector Interior-Point Method for P∗(κ)-HLCP	3
Multidimensional Strongly Deferred Invariant Convergence	3
Fixed Point Theorems in Generalized Banach Algebras and an Application to Infinite Systems in ????([0, 1], c₀) × ????([0, 1], c₀)	3
Two Set Scalarizations Based on the Oriented Distance with Variable Ordering Structures: Properties and Application to Set Optimization	3
Analysis of a Fitted Finite Difference Scheme for a Semilinear System of Singularly Perturbed Reaction-Diffusion Equations Having Discontinuous Source Term	3
Minimax Principle for Eigenvalues of Dual Quaternion Hermitian Matrices and Generalized Inverses of Dual Quaternion Matrices	2
Approximation by α -Bernstein-Kantorovich Type Operators for Functions of One and Two Variables	2
Weighted Composition Operators between the Bloch Type Space and the Hardy Space on the Unit Ball of Complex Banach Spaces	2
On the Modification of Mellin Convolution Operator and Its Associated Information Potential	2
Solving Equilibrium Problems with Bifunctions Having the Property of Negative Transitivity	2
Tight wavelet frames on zero-dimensional groups. Construction and approximation	2

Approximation of Nonhomogeneous Random Field from Local Averages	2
H-Mixed Accretive Mapping and Proximal Point Method for Solving a System of Generalized Set-Valued Variational Inclusions	2
Finite Spectrum of 2nth Order Boundary Value Problems with Transmission Conditions	2
Necessary and Sufficient Optimality Conditions for Non-regular Problems	2
A New Existence Result of Equilibria for Vector Equilibrium Problems	2
On Some Inequalities of Differentiable Uniformly Convex Mapping with Applications	2
Sampling with Derivatives in Periodic Shift-Invariant Spaces	2
Max-Product Sampling Kantorovich Operators: Quantitative Estimates in Functional Spaces	2
On Certain Reversed Mean Lipschitzian Mappings in Banach Spaces	2
Optimality Conditions for Multiobjective Optimization Problems via Image Space Analysis	2
Frames and Dual Frames for Krein Spaces	2
Existence of Solutions of Set Quasi-Optimization Problems Involving Minkowski Difference	2
Uniqueness of STFT Phase Retrieval for Bandlimited Vector Functions	2
Characterizations and Perturbations of the Core-EP Inverse of Tensors Based on the T-Product	2
An Existence Theorem for Some Nonlinear Volterra-Fredholm Integral Equations in the Space of Continuous Tempered Functions	2
On Optimal Estimate of the Block Orthogonal Greedy Algorithm for g-Frames	2
Accuracy Estimates for Bilinear Optimal Control Problems Governed by Ordinary Differential Equations	2
Convergence of an Inertial Shadow Douglas-Rachford Splitting Algorithm for Monotone Inclusions	2
Some Results on Oblique Dual and Approximate Oblique Dual Hilbert-Schmidt Frames	2
Existence Results for Integro-Differential Equations with Reflection	2
Multivariate Dynamical Sampling in and Shift-Invariant Spaces Associated with Linear Canonical Transform	2
On Hermite-Hadamard-Type Inequalities for Subharmonic Functions Over Circular Ring Domains	2
Error Estimates for Approximate Solutions to Seminlinear Elliptic Optimal Control Problems with Nonlinear and Mixed Constraints	2
Doob’s ω-Transform on Local Dirichlet Spaces	2
Estimating Solution Smoothness and Data Noise with Tikhonov Regularization	2