OOIR: Observatory of International Research

Papers

(The median citation count of Numerical Functional Analysis and Optimization is 1. 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 2022-06-01 to 2026-06-01.)

Article	Citations
An Approach for Solving Split Common Fixed Point Problems with Multiple Output Sets That Uses Dynamic Step Sizes	41
On the Type of Ill-Posedness of Generalized Hilbert Matrices and Related Operators	24
Q-duals and Q-approximate duals of g-frames in Hilbert spaces	23
Optimality Conditions for Multiobjective Optimization Problems via Image Space Analysis	22
Tight wavelet frames on zero-dimensional groups. Construction and approximation	20
Weighted Composition Operators between the Bloch Type Space and the Hardy Space on the Unit Ball of Complex Banach Spaces	19
Locally Hölder Continuity of the Solution Map to a Boundary Control Problem with Finite Mixed Control-State Constraints	15
A Wavelet Plancherel Theory with Application to Multipliers and Sparse Approximations	13
On some generalizations of Darbo- and Sadovskii- type fixed point theorems in Fréchet spaces	13
Nonsymmetric Algebraic Riccati Equations under the Tensor Product	12
Properties of the Solution Set of a Class of Mixed Variational Inqualities	12
Forward and Backward Problems for Coupled Subdiffusion Systems	12
Exponential Sampling Type Kantorovich Max-Product Neural Network Operators	10
Subinvariant Metric Functionals for Nonexpansive Mappings	8
A Stable and Convergent Hybridized Discontinuous Galerkin Method for Time-Fractional Telegraph Equations	8
Combined Legendre Spectral-Finite Element Methods for Two-Dimensional Fredholm Integral Equations of the Second Kind	8
Applications of Fell Topology to Closed Set-Valued Optimizations in Partially Ordered First Countable Topological Vector Spaces	8
Generalized Drazin Invertibility of Operator Matrices	8
Data-Driven Morozov Regularization of Inverse Problems	8
Analysis of a Least Squares Weak Galerkin Finite Element Method for a Maxwell Interface Problem	8
A Note on Stability of Parabolic Difference Equations on Torus	7
Time-Frequency Analysis of Gabor Multipliers Associated with the Multidimensional Hankel-Stockwell Transform	6
Generalized Riccati Operator Equations, Invariant Subspaces and Toeplitz Corona Problem	6
Algorithmic Aspect and Iterative Approximation of a Solution for a System of Generalized Multi-Valued Variational-Like Inclusions in Banach Spaces	6
Linear Functional Strategy and the Approximate Inverse for Nonlinear Ill-Posed Problems	6

Higher Order Difference Operators and Associated Relative Reproducing Kernel Hilbert Spaces	5
Two Singularity Subtraction Schemes for a Class of Nonlinear Weakly Singular Integral Equations	5
An Analytic and Numerical Analysis of Weighted Singular Cauchy Integrals with Exponential Weights on ℝ	4
Some Results on Oblique Dual and Approximate Oblique Dual Hilbert-Schmidt Frames	4
On the Modification of Mellin Convolution Operator and Its Associated Information Potential	4
Dinkelbach Type Approximation Algorithms for Nonlinear Fractional Optimization Problems	4
Error Estimates for Approximate Solutions to Seminlinear Elliptic Optimal Control Problems with Nonlinear and Mixed Constraints	4
Approximating the Nonlocal Curvature of Planar Curves	4
Generalized Derivatives in Hilbert Spaces	4
Bivariate Bernstein Chlodovsky Operators Preserving Exponential Functions and Their Convergence Properties	4
A Fully Discrete Approximation of a New Two-Temperature Thermoelastic Model	4
Finding the Best Proximity Point of Generalized Multivalued Contractions with Applications	4
Strong Convergence of Trajectories via Inertial Dynamics Combining Hessian-Driven Damping and Tikhonov Regularization for General Convex Minimizations	4
Optimal Control Results for Sobolev-Type Fractional Stochastic Volterra-Fredholm Integrodifferential Systems of Order ϑ ∈ (1, 2) via Sectorial Operators	4
Characterizations and Perturbations of the Core-EP Inverse of Tensors Based on the T-Product	4
Necessary and Sufficient Optimality Conditions for Non-regular Problems	4
On the Numerical Evaluation of Invertible Regularized Matrices based on High-Order Discretizations of the Laplace Operator for Ill-posed Linear Systems	3
Rates of Convergence and Metastability for Chidume’s Algorithm for the Approximation of Zeros of Accretive Operators in Banach Spaces	3
First-Order Conditions for the Optimal Control of Learning-Informed Nonsmooth PDEs	3
Variational Inequalities Over the Intersection of Fixed Point Sets of Generalized Demimetric Mappings and Zero Point Sets of Maximal Monotone Mappings	3
Stability Radius of S-Quasimonotone Maps	3
Alternated Inertial Viscosity-Type CQ Algorithm with Dual Adaptive Step Sizes for Solving the Split Equality Problem in Hilbert Spaces	3
Regularity of Multipliers and Second-Order Optimality Conditions for Semilinear Parabolic Optimal Control Problems with Mixed Pointwise Constraints	3
Solving Inverse Problems for Nonlinear Fractional Differential Equations Using Fractional-Order Hybrid Fibonacci Functions	3
Tseng’s Algorithm with Extrapolation from the past Endowed with Variable Metrics and Error Terms	3
Continuous Generative Neural Networks: A Wavelet-Based Architecture in Function Spaces	3
On Diferential Inclusions Arising from Some Discontinuous Systems	3
Some results of Karush-Kuhn-Tucker multipliers in robust semi-infinite multiobjective optimization	2
A Variational and Regularization Framework for Stable Strong Solutions of Nonlinear Boundary Value Problems	2
On a Gauss-Kummer Convergence Model	2
On Quasi-Inertial Double Extragradient-Type Iterations for Variational Inequalities with CFPP Constraint Involving Bregman Relatively Asymptotically Nonexpansive Mapping	2
Nonsmooth Constraint Qualifications for Nonconvex Inequality Systems	2
Optimal Feedback Control Results for Damped Second-Order Stochastic Neutral Impulsive Evolution Systems	2
A New Existence Result of Equilibria for Vector Equilibrium Problems	2
Uniqueness of STFT Phase Retrieval for Bandlimited Vector Functions	2
Statistical Convergence of Sequences of Functions in Neutrosophic Normed Spaces	2
Foreword to Recent Developments in Inverse Problems – Dedicated to the 70th Birthday of Professor Bernd Hofmann	2
Algebras of Calderón-Zygmund Operators on RD Spaces	2
Regional Boundary Observability for Semilinear Fractional Systems with Riemann-Liouville Derivative	2
An Approximation Problem in the Space of Bounded Operators	2
Frames and Dual Frames for Krein Spaces	2
Multiple Solutions to p-Biharmonic Equations of Kirchhoff Type with Vanishing Potential	2
The Complete Solution of the Construction Problem of Infinite Frames with Given Redundancy	2
Korneichuk-Stechkin Lemma, Ostrowski and Landau Inequalities, and Optimal Recovery Problems for L-Space Valued Functions	2
Characterizations and Representations of H-S-Frames in Hilbert Spaces	2
Approximation by Sampling Durrmeyer Operators in Weighted Space of Functions	2
Approximation by α -Bernstein-Kantorovich Type Operators for Functions of One and Two Variables	2
Finite Spectrum of 2nth Order Boundary Value Problems with Transmission Conditions	2
The Inexact Parallel Splitting Augmented Lagrangian Algorithm for Multistage Stochastic Variational Inequalities	1
A Super Order Regularization Scheme in Hilbert Scales under General Smoothing Conditions	1

Degenerated and Competing Horizontal (p, q)-Laplacians with Weights on the Heisenberg Group	1
Relatively Monotone and Relatively Generalized Monotone Maps in Nonsmooth Setting and Relative r-Monotonicity	1
Approximation Degree of Bivariate Generalized λ-Bernstein - Kantorovich Type Operators	1
Motzkin Sequence Spaces and Motzkin Core	1
Analysis of a Fitted Finite Difference Scheme for a Semilinear System of Singularly Perturbed Reaction-Diffusion Equations Having Discontinuous Source Term	1
Matrix Transformation and Compactness onq-Catalan Sequence Spaces	1
Diametrically Relatively Nonexpansive Mappings and a Characterization of Proximal Normal Structure	1
On k -WUR and its generalizations	1
fgh -Convex Functions and Entropy Bounds	1
A Generalization of the Concept of Proper Efficiency in the Decomposed Multi-Objective Optimization Problems	1
A Neural Network Approach for Solving Weighted Nonlinear Complementarity Problems	1
Fixed Point Theorem and Related Nonlinear Analysis by the Best Approximation Method in p-Vector Spaces	1
On the Eigenstructure of the Modified Bernstein Operators	1
Core–EP Star and Star Core–EP Operators	1
Phase Retrieval from Linear Canonical Transforms	1
Lagrange Duality and Saddle Point Optimality Conditions for Multiobjective Semi-Infinite Programming with Vanishing Constraints	1
Characterization and Construction of Approximate Q -Oblique Dual g-Frames	1
On Hermite-Hadamard-Type Inequalities for Subharmonic Functions Over Circular Ring Domains	1
On the Bregman-proximal iterative algorithm for the monotone inclusion problem in Banach spaces	1
Total Asymptotically Nonexpansive Mappings and Generalized Variational Inclusion Problems: Algorithmic and Analytical Approach	1
Box Constraints and Weighted Sparsity Regularization for Identifying Sources in Elliptic PDEs	1
Quasi-Newton Method for Set Optimization Problems with Set-Valued Mapping Given by Finitely Many Vector-Valued Functions	1
A Novel Halpern-type Algorithm for a Monotone Inclusion Problem and a Fixed Points Problem on Hadamard Manifolds	1
A New Boosted Proximal Point Algorithm for Minimizing Nonsmooth DC Functions	1
Further Seminorm and Numerical Radius Inequalities for Products and Sums of Operators	1
An Approximating Approach to an Optimal Control Problem for an Elliptic Variational Inequality on a Mixed Boundary^⋆	1
Singular Values of Dual Quaternion Matrices and Their Low-Rank Approximations	1
On σ-Subdifferential Polarity and Fréchet σ-Subdifferential	1
The Closest Point Theorem in CAT _p (0) Metric Spaces	1
Correction	1
Convergence Results for Nonlinear Sampling Kantorovich Operators in Modular Spaces	1
Existence of Best Proximity Pair for Class of Enriched Type Nonexpansive Mappings with Applications	1
Further Hilbert-Schmidt Numerical Radius Inequalities for 2 × 2 Operator Matrices	1
Fixed Point Theorems in Generalized Banach Algebras and an Application to Infinite Systems in ????([0, 1], c₀) × ????([0, 1], c₀)	1
CUR and Generalized CUR Decompositions of Quaternion Matrices and their Applications	1
On Absolute Matrix Summability of Factored Infinite Series and Fourier Series	1
Approximation by Max-Min Neural Network Operators	1