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 2022-05-01 to 2026-05-01.)

Article	Citations
An Approach for Solving Split Common Fixed Point Problems with Multiple Output Sets That Uses Dynamic Step Sizes	39
On the Type of Ill-Posedness of Generalized Hilbert Matrices and Related Operators	23
Q-duals and Q-approximate duals of g-frames in Hilbert spaces	22
Tight wavelet frames on zero-dimensional groups. Construction and approximation	22
Optimality Conditions for Multiobjective Optimization Problems via Image Space Analysis	22
Weighted Composition Operators between the Bloch Type Space and the Hardy Space on the Unit Ball of Complex Banach Spaces	19
Stability Analysis for Semi-Infinite Vector Optimization Problems under Functional Perturbations	18
Locally Hölder Continuity of the Solution Map to a Boundary Control Problem with Finite Mixed Control-State Constraints	16
On some generalizations of Darbo- and Sadovskii- type fixed point theorems in Fréchet spaces	15
A Wavelet Plancherel Theory with Application to Multipliers and Sparse Approximations	14
Forward and Backward Problems for Coupled Subdiffusion Systems	13
Properties of the Solution Set of a Class of Mixed Variational Inqualities	13
Exponential Sampling Type Kantorovich Max-Product Neural Network Operators	13
Nonsymmetric Algebraic Riccati Equations under the Tensor Product	12
Applications of Fell Topology to Closed Set-Valued Optimizations in Partially Ordered First Countable Topological Vector Spaces	12
Generalized Drazin Invertibility of Operator Matrices	11
Time-Frequency Analysis of Gabor Multipliers Associated with the Multidimensional Hankel-Stockwell Transform	8
Subinvariant Metric Functionals for Nonexpansive Mappings	8
A Stable and Convergent Hybridized Discontinuous Galerkin Method for Time-Fractional Telegraph Equations	8
Algorithmic Aspect and Iterative Approximation of a Solution for a System of Generalized Multi-Valued Variational-Like Inclusions in Banach Spaces	8
Combined Legendre Spectral-Finite Element Methods for Two-Dimensional Fredholm Integral Equations of the Second Kind	8
A Note on Stability of Parabolic Difference Equations on Torus	8
Data-Driven Morozov Regularization of Inverse Problems	8
Generalized Riccati Operator Equations, Invariant Subspaces and Toeplitz Corona Problem	7
Linear Functional Strategy and the Approximate Inverse for Nonlinear Ill-Posed Problems	7

An Analytic and Numerical Analysis of Weighted Singular Cauchy Integrals with Exponential Weights on ℝ	6
Finding the Best Proximity Point of Generalized Multivalued Contractions with Applications	6
Higher Order Difference Operators and Associated Relative Reproducing Kernel Hilbert Spaces	6
Some Results on Oblique Dual and Approximate Oblique Dual Hilbert-Schmidt Frames	5
Two Singularity Subtraction Schemes for a Class of Nonlinear Weakly Singular Integral Equations	5
Strong Convergence of Trajectories via Inertial Dynamics Combining Hessian-Driven Damping and Tikhonov Regularization for General Convex Minimizations	5
Approximating the Nonlocal Curvature of Planar Curves	5
Optimal Control Results for Sobolev-Type Fractional Stochastic Volterra-Fredholm Integrodifferential Systems of Order ϑ ∈ (1, 2) via Sectorial Operators	4
Bivariate Bernstein Chlodovsky Operators Preserving Exponential Functions and Their Convergence Properties	4
Necessary and Sufficient Optimality Conditions for Non-regular Problems	4
Stability Radius of S-Quasimonotone Maps	4
Error Estimates for Approximate Solutions to Seminlinear Elliptic Optimal Control Problems with Nonlinear and Mixed Constraints	4
On the Modification of Mellin Convolution Operator and Its Associated Information Potential	4
Characterizations and Perturbations of the Core-EP Inverse of Tensors Based on the T-Product	4
Solving Inverse Problems for Nonlinear Fractional Differential Equations Using Fractional-Order Hybrid Fibonacci Functions	4
Tseng’s Algorithm with Extrapolation from the past Endowed with Variable Metrics and Error Terms	4
Generalized Derivatives in Hilbert Spaces	4
Dinkelbach Type Approximation Algorithms for Nonlinear Fractional Optimization Problems	4
A Fully Discrete Approximation of a New Two-Temperature Thermoelastic Model	4
On the Numerical Evaluation of Invertible Regularized Matrices based on High-Order Discretizations of the Laplace Operator for Ill-posed Linear Systems	4
Rates of Convergence and Metastability for Chidume’s Algorithm for the Approximation of Zeros of Accretive Operators in Banach Spaces	4
An Approximation Problem in the Space of Bounded Operators	3
Continuous Generative Neural Networks: A Wavelet-Based Architecture in Function Spaces	3
Variational Inequalities Over the Intersection of Fixed Point Sets of Generalized Demimetric Mappings and Zero Point Sets of Maximal Monotone Mappings	3
Dualization and Automatic Distributed Parameter Selection of Total Generalized Variation via Bilevel Optimization	3
Regularity of Multipliers and Second-Order Optimality Conditions for Semilinear Parabolic Optimal Control Problems with Mixed Pointwise Constraints	3
Alternated Inertial Viscosity-Type CQ Algorithm with Dual Adaptive Step Sizes for Solving the Split Equality Problem in Hilbert Spaces	3
First-Order Conditions for the Optimal Control of Learning-Informed Nonsmooth PDEs	3
On Quasi-Inertial Double Extragradient-Type Iterations for Variational Inequalities with CFPP Constraint Involving Bregman Relatively Asymptotically Nonexpansive Mapping	3
On Diferential Inclusions Arising from Some Discontinuous Systems	3
Approximation by Sampling Durrmeyer Operators in Weighted Space of Functions	3
Regional Boundary Observability for Semilinear Fractional Systems with Riemann-Liouville Derivative	3
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
On a Gauss-Kummer Convergence Model	2
Korneichuk-Stechkin Lemma, Ostrowski and Landau Inequalities, and Optimal Recovery Problems for L-Space Valued Functions	2
A New Existence Result of Equilibria for Vector Equilibrium Problems	2
The Complete Solution of the Construction Problem of Infinite Frames with Given Redundancy	2
Motzkin Sequence Spaces and Motzkin Core	2
Finite Spectrum of 2nth Order Boundary Value Problems with Transmission Conditions	2
Approximation by α -Bernstein-Kantorovich Type Operators for Functions of One and Two Variables	2
Characterizations and Representations of H-S-Frames in Hilbert Spaces	2
Algebras of Calderón-Zygmund Operators on RD Spaces	2
Frames and Dual Frames for Krein Spaces	2
Uniqueness of STFT Phase Retrieval for Bandlimited Vector Functions	2
A Variational and Regularization Framework for Stable Strong Solutions of Nonlinear Boundary Value Problems	2
Phase Retrieval from Linear Canonical Transforms	2
Some results of Karush-Kuhn-Tucker multipliers in robust semi-infinite multiobjective optimization	2
Nonsmooth Constraint Qualifications for Nonconvex Inequality Systems	2
Semigroups of Composition Operators on Vector-Valued Hardy Spaces	2

Optimal Feedback Control Results for Damped Second-Order Stochastic Neutral Impulsive Evolution Systems	2
Existence of Best Proximity Pair for Class of Enriched Type Nonexpansive Mappings with Applications	2
Multiple Solutions to p-Biharmonic Equations of Kirchhoff Type with Vanishing Potential	2
On the Bregman-proximal iterative algorithm for the monotone inclusion problem in Banach spaces	2
Characterization and Construction of Approximate Q -Oblique Dual g-Frames	2
Matrix Transformation and Compactness onq-Catalan Sequence Spaces	1
The Inexact Parallel Splitting Augmented Lagrangian Algorithm for Multistage Stochastic Variational Inequalities	1
Relatively Monotone and Relatively Generalized Monotone Maps in Nonsmooth Setting and Relative r-Monotonicity	1
On the Eigenstructure of the Modified Bernstein Operators	1
On σ-Subdifferential Polarity and Fréchet σ-Subdifferential	1
Diametrically Relatively Nonexpansive Mappings and a Characterization of Proximal Normal Structure	1
An approach to preserve functions with exponential growth by using modified Lupaş-Kantrovich operators	1
A Generalization of the Concept of Proper Efficiency in the Decomposed Multi-Objective Optimization Problems	1
Approximation Degree of Bivariate Generalized λ-Bernstein - Kantorovich Type Operators	1
Degenerated and Competing Horizontal (p, q)-Laplacians with Weights on the Heisenberg Group	1
Fixed Point Theorems in Generalized Banach Algebras and an Application to Infinite Systems in ????([0, 1], c₀) × ????([0, 1], c₀)	1
Lagrange Duality and Saddle Point Optimality Conditions for Multiobjective Semi-Infinite Programming with Vanishing Constraints	1
A Novel Halpern-type Algorithm for a Monotone Inclusion Problem and a Fixed Points Problem on Hadamard Manifolds	1
Further Seminorm and Numerical Radius Inequalities for Products and Sums of Operators	1
On k -WUR and its generalizations	1
A New Boosted Proximal Point Algorithm for Minimizing Nonsmooth DC Functions	1
A Super Order Regularization Scheme in Hilbert Scales under General Smoothing Conditions	1
fgh -Convex Functions and Entropy Bounds	1
Box Constraints and Weighted Sparsity Regularization for Identifying Sources in Elliptic PDEs	1
Nonlinear Regularized HSS Iteration Method for a Class of Nonlinear Saddle-Point Systems with Applications to Image Deblurring Problems	1
Core–EP Star and Star Core–EP Operators	1
On Hermite-Hadamard-Type Inequalities for Subharmonic Functions Over Circular Ring Domains	1
Convergence Results for Nonlinear Sampling Kantorovich Operators in Modular Spaces	1
Analysis of a Fitted Finite Difference Scheme for a Semilinear System of Singularly Perturbed Reaction-Diffusion Equations Having Discontinuous Source Term	1
On Absolute Matrix Summability of Factored Infinite Series and Fourier Series	1
CUR and Generalized CUR Decompositions of Quaternion Matrices and their Applications	1
Approximation by Max-Min Neural Network Operators	1
A Neural Network Approach for Solving Weighted Nonlinear Complementarity Problems	1
Quasi-Newton Method for Set Optimization Problems with Set-Valued Mapping Given by Finitely Many Vector-Valued Functions	1
Fixed Point Theorem and Related Nonlinear Analysis by the Best Approximation Method in p-Vector Spaces	1
Further Hilbert-Schmidt Numerical Radius Inequalities for 2 × 2 Operator Matrices	1
Theoretical and Numerical Approximation Through Generalized Fractional Integral Type Max Product Neural Network Operators	1
The Closest Point Theorem in CAT _p (0) Metric Spaces	1
Singular Values of Dual Quaternion Matrices and Their Low-Rank Approximations	1
The Study of the Solvability of Infinite Systems of Integral Equations via Measures of Noncompactness	1
Regularized Nyström Subsampling in Covariate Shift Domain Adaptation Problems	1
Total Asymptotically Nonexpansive Mappings and Generalized Variational Inclusion Problems: Algorithmic and Analytical Approach	1
An Approximating Approach to an Optimal Control Problem for an Elliptic Variational Inequality on a Mixed Boundary^⋆	1