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 2022-08-01 to 2026-08-01.)

Article	Citations
Heat Flow in Polygons with Reflecting Edges	12
Semiflows, Composition Semigroups, and the Approximation of Dirichlet-to-Neumann Semigroups	11
Dirac Operators with Infinite Mass Boundary Conditions on Unbounded Domains with Infinite Corners	10
Ideal Structure of Nica-Toeplitz Algebras	7
Function theory on the annulus in the dp-norm	6
Questions About Extreme Points	6
Recovering the Shape of an Equilateral Quantum Tree by Two Spectra	6
Szegő Limit Theorem for Truncated Toeplitz Operators	5
Ultrametric Evolution Generated by Hardy-Type Operators on p-adic Spaces	5
Quasi Gelfand Triples	5
Horizontal Fourier Transform of the Polyanalytic Fock Kernel	5
Relative Topological Principality and the Ideal Intersection Property for Groupoid C*-Algebras	5
Quasicentral Modulus and Self-similar Sets: A Supplementary Result to Voiculescu’s Work	4
Birman–Schwinger Principles for Schrödinger Operators with Distributional Potentials Revisited	4
Discussing Semigroup Bounds with Resolvent Estimates	4
Positive and Negative Eigenfunction Expansion Results for Indefinite Sturm–Liouville Problems	4
$${\mathfrak {L}}$$-Resolvents and Pseudo-Spectral Functions of Symmetric Linear Relations in Hilbert Spaces	4
Lifting Sylvester Equations: Singular Value Decay for Non-Normal Coefficients	4
$$H^\infty $$-calculus for the Stokes operator with Hodge, Navier, and Robin boundary conditions on unbounded domains	4
Banach algebras of multiplication, Wiener-Hopf and Mellin convolution operators: Localization	3
Subinner-Free Outer Factorizations on an Annulus	3
Banach algebras of multiplication, Wiener-Hopf and Mellin convolution operators: Fredholmness	3
On Exponential Splitting Methods for Semilinear Abstract Cauchy problems	3
Real Decomposable Maps on Operator Systems	3
On Banach subalgebras of the Dirichlet Hardy algebra $$\mathscr {H}^\infty $$ consisting of lacunary Dirichlet series	3

Denjoy–Wolff Points on the Bidisk via Models	3
Translation-invariant Operators in Reproducing Kernel Hilbert Spaces	3
Trapped Modes in Electromagnetic Waveguides	2
Positive operator-valued noncommutative polynomials are squares	2
$$\varvec{q}$$-rational Functions and Interpolation with Complete Nevanlinna–Pick Kernels	2
Publisher Correction: Five Open Problems on the Dirichlet-to-Neumann Operator with Variable Coefficients	2
Weighted Cuntz–Krieger Algebras	2
Classes of Kernels and Continuity Properties of the Double Layer Potential in Hölder Spaces	2
Reproducing Kernel Thesis of Hankel Operators on Weighted Hardy Spaces	2
Correction to: Volterra Type Operators Between Bloch Type Spaces and Weighted Banach Spaces	2
Traces on Operator Ideals Defined over the Class of all Banach Spaces and Related Open Problems	2
A Dense Lineability Criterion for Linear Dynamics	2
Symmetries and Reflections from Composition Operators in the Disk	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
Solving Continuous Time Leech Problems for Rational Operator Functions	2
Hilbert $$C^$$-Modules with Hilbert Dual and $$C^$$-Fredholm Operators	2
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
Generalized Wright Analysis in Infinite Dimensions	2
The Double-Layer Potential for Spectral Constants Revisited	2
Harris’ Criterion and Hardy Inequalities on Graphs	2
$$C^*$$-Algebras Associated to Transfer Operators for Countable-to-One Maps	1
Some Operator Ideal Properties of Volterra Operators on Bergman and Bloch Spaces	1
Local Spectral Multiplicity of Selfadjoint Couplings with General Interface Conditions	1
On the Power Set of Quasinilpotent Operators	1
The Heisenberg Group Action on the Siegel Domain and the Structure of Bergman Spaces	1
Sufficient Criteria for Stabilization Properties in Banach Spaces	1
Invariant Subspaces of Idempotents on Hilbert Spaces	1
Fourier Multipliers in Homogeneous Banach Spaces	1
On the Eigenvalues of Spectral Gaps of Elliptic PDEs on Waveguides	1
Large Perturbations of Nest Algebras	1
Approximation of the Spectral Action Functional in the Case of $$\tau $$-Compact Resolvents	1
Compressions of Selfadjoint and Maximal Dissipative Extensions of Non-densely Defined Symmetric Operators	1
Reproducing Kernel Hilbert Spaces of Polyanalytic Functions of Infinite Order	1
Operator Realizations About a Matrix-Centre	1
Discrete Coagulation–Fragmentation Systems in Weighted $$\ell ^1$$ Spaces	1
Wiener-Hopf Factorisation and Fredholmness of Toeplitz Operators on Abstract Hardy Spaces	1
On Lieb–Thirring inequalities for multidimensional Schrödinger operators with complex potentials	1
A New Systems Theory Perspective on Canonical Wiener-Hopf Factorization on the Unit Circle	1
A Quantum Harmonic Analysis Approach to Segal Algebras	1
Various form closures associated with a fixed non-semibounded self-adjoint operator	1
Regular Ideals, Ideal Intersections, and Quotients	1
Finite Dimensional Naimark Realizations and Choice Sequences	1
Quadratic Subproduct Systems, Free Products, and Their C*-Algebras	1
Extension Theory Via Boundary Triplets for Infinite-Dimensional Implicit Port-Hamiltonian Systems	1
Models of Holomorphic Functions on the Symmetrized Skew Bidisc	1