OOIR: Observatory of International Research

Papers

(The median citation count of Integral Equations and Operator Theory 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 2021-07-01 to 2025-07-01.)

Article	Citations
$$\hbox {L}^p$$ Spaces of Operator-Valued Functions	13
Coupled Domain-Boundary Variational Formulations for Hodge–Helmholtz Operators	10
The Angle Along a Curve and Range-Kernel Complementarity	8
Semiflows, Composition Semigroups, and the Approximation of Dirichlet-to-Neumann Semigroups	6
Heat Flow in Polygons with Reflecting Edges	6
A Sequence of Weighted Birman–Hardy–Rellich Inequalities with Logarithmic Refinements	5
Boundary Integral Operators for the Heat Equation in Time-Dependent Domains	5
Horizontal Fourier Transform of the Polyanalytic Fock Kernel	5
Dirac Operators with Infinite Mass Boundary Conditions on Unbounded Domains with Infinite Corners	5
Recovering the Shape of an Equilateral Quantum Tree by Two Spectra	5
Operators Which Preserve a Positive Definite Inner Product	5
Ideal Structure of Nica-Toeplitz Algebras	5
Relative Topological Principality and the Ideal Intersection Property for Groupoid C*-Algebras	5
Questions About Extreme Points	5
Hyperrigidity of C*-Correspondences	4
Quasicentral Modulus and Self-similar Sets: A Supplementary Result to Voiculescu’s Work	4
Szegő Limit Theorem for Truncated Toeplitz Operators	4
Discussing Semigroup Bounds with Resolvent Estimates	4
Quasi Gelfand Triples	4
Shape Holomorphy of the Calderón Projector for the Laplacian in $${\mathbb {R}}^2$$	4
On Certain Order Properties of Non Kubo–Ando Means in Operator Algebras	4
Denjoy–Wolff Points on the Bidisk via Models	3
On Exponential Splitting Methods for Semilinear Abstract Cauchy problems	3
Correction to: Volterra Type Operators Between Bloch Type Spaces and Weighted Banach Spaces	3
Five Open Problems on the Dirichlet-to-Neumann Operator with Variable Coefficients	3

Subinner-Free Outer Factorizations on an Annulus	3
Hilbert $$C^$$-Modules with Hilbert Dual and $$C^$$-Fredholm Operators	3
A New Characterization of Carleson Measures on the Unit Ball of $${\mathbb {C}}^n$$	3
Pusz–Woronowicz Functional Calculus and Extended Operator Convex Perspectives	3
Lifting Sylvester Equations: Singular Value Decay for Non-Normal Coefficients	3
Translation-invariant Operators in Reproducing Kernel Hilbert Spaces	3
Positive and Negative Eigenfunction Expansion Results for Indefinite Sturm–Liouville Problems	3
The Drury–Arveson Space on the Siegel Upper Half-space and a von Neumann Type Inequality	3
Reflectionless Canonical Systems, I: Arov Gauge and Right Limits	2
Reproducing Kernel Thesis of Hankel Operators on Weighted Hardy Spaces	2
The Twisted Hilbert Space Ideals	2
Publisher Correction: Five Open Problems on the Dirichlet-to-Neumann Operator with Variable Coefficients	2
On the Continuity of Strongly Singular Calderón–Zygmund-Type Operators on Hardy Spaces	2
Decay Rate of $$\varvec{\exp (A^{-1}t)A^{-1}}$$ on a Hilbert Space and the Crank–Nicolson Scheme with Smooth Initial Data	2
Sufficient Criteria for Stabilization Properties in Banach Spaces	2
The Reachable Space of the Heat Equation for a Finite Rod as a Reproducing Kernel Hilbert Space	2
Traces on Operator Ideals Defined over the Class of all Banach Spaces and Related Open Problems	2
$$\varvec{q}$$-rational Functions and Interpolation with Complete Nevanlinna–Pick Kernels	2
Symmetries and Reflections from Composition Operators in the Disk	2
Weighted Cuntz–Krieger Algebras	2
Classes of Kernels and Continuity Properties of the Double Layer Potential in Hölder Spaces	2
Inclusion Theorems for the Moyal Multiplier Algebras of Generalized Gelfand–Shilov Spaces	2
Unbounded Bergman Projections on Weighted Spaces with Respect to Exponential Weights	2
Solving Continuous Time Leech Problems for Rational Operator Functions	2
The Double-Layer Potential for Spectral Constants Revisited	2
Essential m-dissipativity for Possibly Degenerate Generators of Infinite-dimensional Diffusion Processes	2
Harris’ Criterion and Hardy Inequalities on Graphs	2
Essential Spectrum and Feller Type Properties	1
$$\varvec{m}$$–Isometric Composition Operators on Directed Graphs with One Circuit	1
Fourier Multipliers and Pseudo-differential Operators on Fock-Sobolev Spaces	1
Integral Operators on Fock–Sobolev Spaces via Multipliers on Gauss–Sobolev Spaces	1
Toeplitz Operators on the Unit Ball with Locally Integrable Symbols	1
Asymptotic Behavior of Solutions of the Dirac System with an Integrable Potential	1
Approximation of the Spectral Action Functional in the Case of $$\tau $$-Compact Resolvents	1
Cyclic Vectors, Outer Functions and Mahler Measure in Two Variables	1
Atomic and Wavelet Characterization of Musielak–Orlicz Hardy Spaces for Generalized Orlicz Functions	1
Compressions of Selfadjoint and Maximal Dissipative Extensions of Non-densely Defined Symmetric Operators	1
Local Spectral Multiplicity of Selfadjoint Couplings with General Interface Conditions	1
On the Dynamics of Lipschitz Operators	1
Stability Analysis of a Simple Discretization Method for a Class of Strongly Singular Integral Equations	1
Correction to: Generalization of Schur’s Test and Its Application to a Class of Integral Operators on the Unit Ball of $$\mathbb {C}^n$$	1
Large Perturbations of Nest Algebras	1
Arithmetic Progressions and Chaos in Linear Dynamics	1
Invariant Subspaces of Idempotents on Hilbert Spaces	1
On the Power Set of Quasinilpotent Operators	1
Reproducing Kernel Hilbert Spaces of Polyanalytic Functions of Infinite Order	1
The Agler Reducing Subspace for the Operator-Valued Inner Function Over the Bidisk	1
Limit Laws for R-diagonal Variables in a Tracial Probability Space	1
Norms of Basic Operators in Vector Valued Model Spaces and de Branges Spaces	1
Subhomogeneous Operator Systems and Classification of Operator Systems Generated by $$\Lambda $$-Commuting Unitaries	1

Toeplitz Operators, $$\mathbb {T}^m$$-Invariance and Quasi-homogeneous Symbols	1
$$C^*$$-Algebras Associated to Transfer Operators for Countable-to-One Maps	1
Some Operator Ideal Properties of Volterra Operators on Bergman and Bloch Spaces	1
A Quantum Harmonic Analysis Approach to Segal Algebras	1
Regular Ideals, Ideal Intersections, and Quotients	1
The Heisenberg Group Action on the Siegel Domain and the Structure of Bergman Spaces	1
On the Eigenvalues of Spectral Gaps of Elliptic PDEs on Waveguides	1