OOIR: Observatory of International Research

Papers

(The TQCC of Journal of 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 2021-11-01 to 2025-11-01.)

Article	Citations
On the first-order free group factor elementary equivalence	9
Partial Pontryagin duality for actions of quantum groups on C*-algebras	8
Around the closures of the set of commutators and the set of differences of idempotent elements of B(H)	7
A framework for rank identities - with a view towards operator algebras	6
Some examples of factor groupoids	6
Polar decomposition in algebraic K-theory	5
Hypercontractions and factorizations of multipliers in one and several variables	5
Operator theory of multiple Ito-integrals	4
M-accretive realisations of skew-symmetric operators	3
Higher-order spectral shift function for resolvent comparable perturbations	3
Compact weighted composition operators on spaces of holomorphic functions on Banach spaces	3
Upgrading subordination properties in free probability	3
Ergodic properties of convolution operators	3
Multiple operator integrals in non-separable von Neumann algebras	3
Locally eventually positive operator semigroups	2
	2
	2
The Hardy-Weyl algebra	2
Kernels of Hilbert module maps: a counterexample	2
Quadratic Wasserstein metrics for von Neumann algebras via transport plans	2
	2
	2
Transformations preserving the norm of means between positive cones of general and commutative C∗-algebras	2
Symmetry for algebras associated to Fell bundles over groups and groupoids	2
Stably finite extensions of C∗-algebras of rank-two graphs	2

	2
On the self-adjointness of two-dimensional relativistic shell interactions	2
Representations of C*-correspondences on pairs of Hilbert spaces	1
Note on the Kato property of sectorial forms	1
Relative C∗-simplicity and characterizations for normal subgroups	1
Lp-isometries of Grassmann spaces in\\ factors of type II	1
Analytic m-isometries and weighted Dirichlet-type spaces	1
Fock representation of free convolution powers	1
Doubly commuting and dual doubly commuting semigroups of isometries	1
The Howland-Kato commutator problem. II	1
An abstract approach to the Crouzeix conjecture	1
A note on the spectrum of Lipschitz operators and composition operators on Lipschitz spaces	1
The stable rank of a class of C*-algebras with the ideal property	1
Compactness properties of multiplication and substitution operators	1
Orthogonal decompositions and twisted isometries. II	1
Almost and weakly almost periodic functions on the unitary groups of von Neumann algebras	1
Topological boundaries of connected graphs and Coxeter groups	1
Self-similarity and spectral dynamics	1
On continuous duality for Moore groups	1
Groupoid semidirect product Fell bundles. I. Actions by isomorphisms	1
Higher order isometric shift operator on the de Branges-Rovnyak space	1
The truncated moment problem for unital commutative R-algebras	1
Quantum SL(2,R) and its irreducible representations	1
Trace formula for contractions and its representation in D	1
Properties preserved by groupoid equivalence	1
On limit eigenvalue distributions associated to residual chains of groups	1
	1
Rank one density for a class of M-bases	1