OOIR: Observatory of International Research

Papers

(The TQCC of Integral Equations and Operator Theory is 2. 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 2021-09-01 to 2025-09-01.)

Article	Citations
$$\hbox {L}^p$$ Spaces of Operator-Valued Functions	12
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
Recovering the Shape of an Equilateral Quantum Tree by Two Spectra	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
Horizontal Fourier Transform of the Polyanalytic Fock Kernel	5
Boundary Integral Operators for the Heat Equation in Time-Dependent Domains	5
Szegő Limit Theorem for Truncated Toeplitz Operators	4
Discussing Semigroup Bounds with Resolvent Estimates	4
Quasicentral Modulus and Self-similar Sets: A Supplementary Result to Voiculescu’s Work	4
Relative Topological Principality and the Ideal Intersection Property for Groupoid C*-Algebras	4
On Certain Order Properties of Non Kubo–Ando Means in Operator Algebras	4
Quasi Gelfand Triples	4
Positive and Negative Eigenfunction Expansion Results for Indefinite Sturm–Liouville Problems	4
Subinner-Free Outer Factorizations on an Annulus	3
Pusz–Woronowicz Functional Calculus and Extended Operator Convex Perspectives	3
Five Open Problems on the Dirichlet-to-Neumann Operator with Variable Coefficients	3
Lifting Sylvester Equations: Singular Value Decay for Non-Normal Coefficients	3
Translation-invariant Operators in Reproducing Kernel Hilbert Spaces	3
Correction to: Volterra Type Operators Between Bloch Type Spaces and Weighted Banach Spaces	3

Hilbert $$C^$$-Modules with Hilbert Dual and $$C^$$-Fredholm Operators	3
Denjoy–Wolff Points on the Bidisk via Models	3
On Exponential Splitting Methods for Semilinear Abstract Cauchy problems	3
The Drury–Arveson Space on the Siegel Upper Half-space and a von Neumann Type Inequality	3
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
Weighted Cuntz–Krieger Algebras	2
Classes of Kernels and Continuity Properties of the Double Layer Potential in Hölder Spaces	2
Symmetries and Reflections from Composition Operators in the Disk	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
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
Unbounded Bergman Projections on Weighted Spaces with Respect to Exponential Weights	2
Solving Continuous Time Leech Problems for Rational Operator Functions	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