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 2021-04-01 to 2025-04-01.)

Article	Citations
Projected Composition Operators on Pseudoconvex Domains	11
Aluthge Operator Field and Its Numerical Range and Spectral Properties	11
Dirac Integral Equations for Dielectric and Plasmonic Scattering	10
Atomic and Wavelet Characterization of Musielak–Orlicz Hardy Spaces for Generalized Orlicz Functions	8
Restrictions on the Existence of a Canonical System Flow Hierarchy	7
Coupled Domain-Boundary Variational Formulations for Hodge–Helmholtz Operators	7
$$\hbox {L}^p$$ Spaces of Operator-Valued Functions	6
Heat Flow in Polygons with Reflecting Edges	5
Stability Analysis of a Simple Discretization Method for a Class of Strongly Singular Integral Equations	5
Realizations of Non-commutative Rational Functions Around a Matrix Centre, II: The Lost-Abbey Conditions	5
A Sequence of Weighted Birman–Hardy–Rellich Inequalities with Logarithmic Refinements	5
The Coburn Lemma and the Hartman–Wintner–Simonenko Theorem for Toeplitz Operators on Abstract Hardy Spaces	5
Hilbert $$C^$$-Modules with Hilbert Dual and $$C^$$-Fredholm Operators	5
Translation-invariant Operators in Reproducing Kernel Hilbert Spaces	5
Transformations of Moment Functionals	5
Semiflows, Composition Semigroups, and the Approximation of Dirichlet-to-Neumann Semigroups	4
Reproducing Kernel Hilbert Spaces of Polyanalytic Functions of Infinite Order	4
On Exponential Splitting Methods for Semilinear Abstract Cauchy problems	4
Green’s Functions for First-Order Systems of Ordinary Differential Equations without the Unique Continuation Property	4
Conditions for Semi-Boundedness and Discreteness of the Spectrum to Schrödinger Operator and Some Nonlinear PDEs	4
Essential Spectrum and Feller Type Properties	4
A New Characterization of Carleson Measures on the Unit Ball of $${\mathbb {C}}^n$$	3
Real Operator Algebras and Real Positive Maps	3
Pusz–Woronowicz Functional Calculus and Extended Operator Convex Perspectives	3
The Angle Along a Curve and Range-Kernel Complementarity	3

Maximal Regularity for Non-autonomous Evolutionary Equations	3
Correction to: Volterra Type Operators Between Bloch Type Spaces and Weighted Banach Spaces	3
On the Dynamics of Lipschitz Operators	3
The Drury–Arveson Space on the Siegel Upper Half-space and a von Neumann Type Inequality	3
Eigenvalues of K-invariant Toeplitz Operators on Bounded Symmetric Domains	3
$$\varvec{m}$$–Isometric Composition Operators on Directed Graphs with One Circuit	3
Feynman–Kac Formulas for Dirichlet–Pauli–Fierz Operators with Singular Coefficients	3
$$L^p$$ and $$H^1$$ Boundedness of Oscillatory Singular Integral Operators with Hölder Class Kernels	3
On Semigroups Generated by Sums of Even Powers of Dunkl Operators	3
Fourier Multipliers and Pseudo-differential Operators on Fock-Sobolev Spaces	3
The Heisenberg Group Action on the Siegel Domain and the Structure of Bergman Spaces	2
Norms of Basic Operators in Vector Valued Model Spaces and de Branges Spaces	2
Projective Limit Techniques for the Infinite Dimensional Moment Problem	2
Minimal Realizations and Determinantal Representations in the Indefinite Setting	2
Global Propagator for the Massless Dirac Operator and Spectral Asymptotics	2
Regular Ideals, Ideal Intersections, and Quotients	2
Operators Which Preserve a Positive Definite Inner Product	2
Power-Series Summability Methods in de Branges–Rovnyak Spaces	2
Submodules in Polydomains and Noncommutative Varieties	2
Recovering the Shape of an Equilateral Quantum Tree by Two Spectra	2
Conjugations Preserving Toeplitz Kernels	2
Boundary Integral Operators for the Heat Equation in Time-Dependent Domains	2
Ideal Structure of Nica-Toeplitz Algebras	2
Difference of Weighted Composition Operators II	2
Invariant Subspaces of Idempotents on Hilbert Spaces	2
The Twisted Hilbert Space Ideals	2
Asymptotic Behavior of a Bingham Flow in Thin Domains with Rough Boundary	2
Limit Laws for R-diagonal Variables in a Tracial Probability Space	2
Positive Semidefinite Maps on $$*$$-Semigroupoids and Linearisations	2
Questions About Extreme Points	2
Dyadic Maximal Operators on Martingale Musielak–Orlicz Hardy Type Spaces and Applications	2
Subhomogeneous Operator Systems and Classification of Operator Systems Generated by $$\Lambda $$-Commuting Unitaries	2
Horizontal Fourier Transform of the Polyanalytic Fock Kernel	2
On Operator Valued Haar Unitaries and Bipolar Decompositions of R-diagonal Elements	2
Traces on Operator Ideals Defined over the Class of all Banach Spaces and Related Open Problems	2
Bounds for Schrödinger Operators on the Half-Line Perturbed by Dissipative Barriers	2
C*-Envelope and Dilation Theory of Semigroup Dynamical Systems	2
On the Power Set of Quasinilpotent Operators	1
Essential positivity for Toeplitz operators on the Fock space	1
Compressions of Selfadjoint and Maximal Dissipative Extensions of Non-densely Defined Symmetric Operators	1
The Truncated Hamburger Moment Problems with Gaps in the Index Set	1
Can Dissipative Maxwell Systems have Open Disks of Eigenvalues ?	1
Backward Extensions of Weighted Shifts on Directed Trees	1
Volterra-Type Discrete Integral Equations and Spectra of Non-self-adjoint Jacobi Operators	1
A Trace Inequality for Commuting d-Tuples of Operators	1
Quasicentral Modulus and Self-similar Sets: A Supplementary Result to Voiculescu’s Work	1
Bunce-Deddens Algebras as Quantum Gromov-Hausdorff Distance Limits of Circle Algebras	1
Arithmetic Progressions and Chaos in Linear Dynamics	1
A Derivative Formula for the Solid Cauchy Integral Operator and Its Applications	1
Numerical Ranges of Antilinear Operators	1

Tropical Reproducing Kernels and Optimization	1
Random Weighted Shifts on Hilbert Spaces of Analytic Functions	1
On a Polyanalytic Approach to Noncommutative de Branges–Rovnyak Spaces and Schur Analysis	1
Some Sufficient Conditions for Compactness of Linear Hammerstein Integral Operators and Applications	1
Unbounded Bergman Projections on Weighted Spaces with Respect to Exponential Weights	1
Spectra for Toeplitz Operators Associated with a Constrained Subalgebra	1
Hyperrigidity of C*-Correspondences	1
Hypergeometric Expression for the Resolvent of the Discrete Laplacian in Low Dimensions	1
Relative Topological Principality and the Ideal Intersection Property for Groupoid C*-Algebras	1
On the Continuity of Strongly Singular Calderón–Zygmund-Type Operators on Hardy Spaces	1
Representations and Regularity of Vector-Valued Right-Shift Invariant Operators Between Half-Line Bessel Potential Spaces	1
Quasi Gelfand Triples	1
In Memoriam Heinz Langer (08.08.1935-25.01.2024)	1
Correction to: Weak Product Spaces of Dirichlet Series	1
Asymptotic Behavior of Solutions of the Dirac System with an Integrable Potential	1
Commutative Algebras of Toeplitz Operators on the Bergman Space Revisited: Spectral Theorem Approach	1
Feynman’s Operational Calculus with Arbitrary Measures: An Evolution Equation in the General Case and Examples	1
New Properties of the Multivariable $$H^\infty $$ Functional Calculus of Sectorial Operators	1
Mate–Nevai–Totik Theorem for Krein Systems	1