OOIR: Observatory of International Research

Papers

(The TQCC of Operators and Matrices 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 2021-10-01 to 2025-10-01.)

Article	Citations
Dense subset of matrices having eigenvalues and singular values with minimum number of repetition	12
Oppenheim-Schur's inequality and RKHS	8
Refining some inequalities on 2 × 2 block accretive matrices	7
The Fourier transform of anisotropic Hardy spaces with variable exponents and their applications	5
Convergence of the conjugate gradient method with unbounded operators	5
Inequalities on 2 × 2 block accretive matrices	5
Standard operator Jordan rings on Banach spaces, and their derivations	5
A note on some classes of G-matrices	5
On a generalization of left and right invertible operators on Banach spaces	4
A special property of resistance matrices	4
CBMO estimates for some multilinear operators on mixed Herz spaces	4
On some algebraic properties of block Toeplitz matrices with commuting entries	3
Bounds for the eigenvalues of non-monic operator polynomials	3
Berezin number inequalities via positivity of 2×2 block matrices	3
Surface localization in impurity band with arbitrary singular disorder and long-range potentials	3
The operator equation AXB=X and the Fuglede-Putnam type property	2
Continuity between some special Köthe spaces	2
A generalization of Kleinecke-Shirokov theorem for matrices	2
Weak-star dentability, quasi-weak-star near dentability and continuity of metric projector in Banach spaces	2
The Aleksandrov problem and the Tingley problem for expansive and nonexpansive operators in p-normed spaces	2
The Friedrichs extension of regular symmetric differential operators	2
On 2×2 positive matrices of τ-measurable operators	2
Refining and reversing Jensen's inequality	2
Unitary, self-adjoint and ᵊ5-symmetric weighted composition operators on Fock-Sobolev spaces	2
Relative residual bounds for eigenvalues in gaps of the essential spectrum	2

Sufficient conditions for factor posets of frames in R^n and their graph associations	2
Jacobson's lemma for the operators admitting Saphar decompositions	2
On the A_ɑ spectral radius of strongly connected digraphs	2
On the estimation of q-numerical radius of Hilbert space operators	2
Spectral perturbation by rank m matrices	2
Minimal generating and separating sets for O(3)-invariants of several matrices	2
Minimal families of limit operators	2
On number theoretic properties of the KdV frequencies	2
Singly generated selfadjoint-ideal operator semigroups: spectral density of the generator and simplicity	2
An interpolation property of reflections involving orthogonal projections	2
On approximate and actual reducibility of matrix groups	1
Order boundedness and essential norm of generalized weighted composition operators on Bergman spaces with doubling weights	1
Multiple-term refinements for upper bound of the Hermite-Hadamard inequality and applications	1
On n-Lie derivations of triangular algebras	1
Further refinements of Davis-Wielandt radius inequalities	1
Dilations of linear maps on vector spaces	1
Computing the S-numerical ranges of differential operators	1
Generalized Choi-Kraus dilations of linear maps between matrix algebras	1
On solvability of Volterra-Hammerstein integral equations in two variables coordinatewise converging at infinity	1
Numerical ranges of some Foguel operators	1
Generalized weighted composition operators on weighted Hardy spaces	1
Generalized Ghabries-Abbas-Mourad log-majorization	1
Spectrum and fine spectrum of band matrices generated by oscillatory sequences	1
Proper nonnegative splittings over proper cones of rectangular matrices	1
Distinguished subspaces of Topelitz operators on N_ɸ-type quotient modules	1
Atomic lattices of subspaces of an arbitrary vector space and associated operator algebras	1
On the similarity of complex symmetric operators to perturbations of restrictions of normal operators	1
A criterion of local derivations on the seven-dimensional simple Malcev algebra	1
Approximate equivalence in von Neumann algebras	1
Spectral representation of absolutely minimum attaining unbounded normal operators	1
On operators satisfying T^(T^2 T^2)^p T ⩾ T^(T^2 T^2)^p T	1
Addendum to: On a reduction procedure for Horn inequalities in finite von~Neumann algebras	1
Preservers of condition spectra and pseudo spectra of Hermitian matrix Jordan products	1
Explicit solutions of matrix and dynamical Schrödinger equations and of KdV equation in terms of square roots of the generalised matrix eigenvalues	1
Nonlinear skew Lie type higher derivations on some operator algebras	1
Disjoint hypercyclic powers of weighted translations on locally compact Hausdorff spaces	1
Some inequalities related to numerical radius and distance from scalar operators in Hilbert spaces	1
The peak model for finite rank supersingular perturbations	1
Joint spectrum shrinking maps on projections	1
Positively limited p-convergent and weak* positively p-convergent operators	1
Remarks on scalable frames	1
Expansive operators which are power bounded or algebraic	1
Duality of generalized Hardy and BMO spaces associated with singular partial differential operator	1
Some results on cauchy dual of conditional type operators	1
Mean ergodicity of multiplication operators on the Bloch and Besov spaces	1
Some properties of exact phase retrievable subspaces	1
On the A ;1 spectral radius and A ;1 energy of non-strongly connected digraphs	1
A constructive proof of a noncommutative Fejér-Riesz theorem	1
Local isometries on subspaces and subalgebras of function spaces	1
On the solvability of generalized Sylvester operator equations	1

Converse of Fuglede Theorem	1
Some inequalities for eigenvalues and positive linear maps	1
A generalization of the weighted algebraic numerical radius on C*-algebras	1
Banach weak topology on Hilbert C✻-modules	1
Numerical radii of weighted shift operators using determinantal polynomials	1
On Ando-Hiai type inequalities for sectorial matrices	1
On a characterization of Jeribi, Rakočević, Schechter, Schmoeger and Wolf essential spectra of a 3⨉3 block operator matrices with non diagonal domain and application	1
Nonadditive commuting mappings on triangular n-matrix rings	1
Gaps between some spectral characteristics of direct sum of Hilbert space operators	1
A pseudospectral mapping theorem for operator pencils	1