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 2021-08-01 to 2025-08-01.)

Article	Citations
$$\hbox {L}^p$$ Spaces of Operator-Valued Functions	10
Coupled Domain-Boundary Variational Formulations for Hodge–Helmholtz Operators	8
Heat Flow in Polygons with Reflecting Edges	8
Semiflows, Composition Semigroups, and the Approximation of Dirichlet-to-Neumann Semigroups	6
A Sequence of Weighted Birman–Hardy–Rellich Inequalities with Logarithmic Refinements	6
Relative Topological Principality and the Ideal Intersection Property for Groupoid C*-Algebras	5
Horizontal Fourier Transform of the Polyanalytic Fock Kernel	5
Ideal Structure of Nica-Toeplitz Algebras	5
Operators Which Preserve a Positive Definite Inner Product	5
Questions About Extreme Points	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
Boundary Integral Operators for the Heat Equation in Time-Dependent Domains	5
Quasicentral Modulus and Self-similar Sets: A Supplementary Result to Voiculescu’s Work	4
Lifting Sylvester Equations: Singular Value Decay for Non-Normal Coefficients	4
Szegő Limit Theorem for Truncated Toeplitz Operators	4
Positive and Negative Eigenfunction Expansion Results for Indefinite Sturm–Liouville Problems	4
Denjoy–Wolff Points on the Bidisk via Models	4
Discussing Semigroup Bounds with Resolvent Estimates	4
Quasi Gelfand Triples	4
On Certain Order Properties of Non Kubo–Ando Means in Operator Algebras	4
Pusz–Woronowicz Functional Calculus and Extended Operator Convex Perspectives	3
On Exponential Splitting Methods for Semilinear Abstract Cauchy problems	3
Traces on Operator Ideals Defined over the Class of all Banach Spaces and Related Open Problems	3
On the Continuity of Strongly Singular Calderón–Zygmund-Type Operators on Hardy Spaces	3

Translation-invariant Operators in Reproducing Kernel Hilbert Spaces	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
The Twisted Hilbert Space Ideals	3
Subinner-Free Outer Factorizations on an Annulus	3
Correction to: Volterra Type Operators Between Bloch Type Spaces and Weighted Banach Spaces	3
The Drury–Arveson Space on the Siegel Upper Half-space and a von Neumann Type Inequality	3
Five Open Problems on the Dirichlet-to-Neumann Operator with Variable Coefficients	3
$$\varvec{q}$$-rational Functions and Interpolation with Complete Nevanlinna–Pick Kernels	2
Reproducing Kernel Thesis of Hankel Operators on Weighted Hardy Spaces	2
Essential m-dissipativity for Possibly Degenerate Generators of Infinite-dimensional Diffusion Processes	2
Harris’ Criterion and Hardy Inequalities on Graphs	2
Cyclic Vectors, Outer Functions and Mahler Measure in Two Variables	2
Weighted Cuntz–Krieger Algebras	2
Solving Continuous Time Leech Problems for Rational Operator Functions	2
The Double-Layer Potential for Spectral Constants Revisited	2
Sufficient Criteria for Stabilization Properties in Banach Spaces	2
Inclusion Theorems for the Moyal Multiplier Algebras of Generalized Gelfand–Shilov Spaces	2
Reproducing Kernel Hilbert Spaces of Polyanalytic Functions of Infinite Order	2
Unbounded Bergman Projections on Weighted Spaces with Respect to Exponential Weights	2
Publisher Correction: Five Open Problems on the Dirichlet-to-Neumann Operator with Variable Coefficients	2
Symmetries and Reflections from Composition Operators in the Disk	2
Classes of Kernels and Continuity Properties of the Double Layer Potential in Hölder Spaces	2
Reflectionless Canonical Systems, I: Arov Gauge and Right Limits	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
Stability Analysis of a Simple Discretization Method for a Class of Strongly Singular Integral Equations	1
On the Eigenvalues of Spectral Gaps of Elliptic PDEs on Waveguides	1
Some Operator Ideal Properties of Volterra Operators on Bergman and Bloch Spaces	1
Regular Ideals, Ideal Intersections, and Quotients	1
The Heisenberg Group Action on the Siegel Domain and the Structure of Bergman Spaces	1
Local Spectral Multiplicity of Selfadjoint Couplings with General Interface Conditions	1
In Memoriam Heinz Langer (08.08.1935-25.01.2024)	1
Norms of Basic Operators in Vector Valued Model Spaces and de Branges Spaces	1
$$\varvec{m}$$–Isometric Composition Operators on Directed Graphs with One Circuit	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
The Agler Reducing Subspace for the Operator-Valued Inner Function Over the Bidisk	1
Arithmetic Progressions and Chaos in Linear Dynamics	1
Invariant Subspaces of Idempotents on Hilbert Spaces	1
Compressions of Selfadjoint and Maximal Dissipative Extensions of Non-densely Defined Symmetric Operators	1
$$C^*$$-Algebras Associated to Transfer Operators for Countable-to-One Maps	1
On Schrödinger operators with oblique transmission conditions on non-smooth curves	1
Limit Laws for R-diagonal Variables in a Tracial Probability Space	1
Large Perturbations of Nest Algebras	1
Essential Spectrum and Feller Type Properties	1
Toeplitz Operators, $$\mathbb {T}^m$$-Invariance and Quasi-homogeneous Symbols	1
Approximation of the Spectral Action Functional in the Case of $$\tau $$-Compact Resolvents	1
A Quantum Harmonic Analysis Approach to Segal Algebras	1
Atomic and Wavelet Characterization of Musielak–Orlicz Hardy Spaces for Generalized Orlicz Functions	1
On the Power Set of Quasinilpotent Operators	1
Asymptotic Behavior of Solutions of the Dirac System with an Integrable Potential	1

Toeplitz Operators on the Unit Ball with Locally Integrable Symbols	1
Subhomogeneous Operator Systems and Classification of Operator Systems Generated by $$\Lambda $$-Commuting Unitaries	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