OOIR: Observatory of International Research

Papers

(The TQCC of Numerical Linear Algebra With Applications is 3. 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
Rank‐structured approximation of some Cauchy matrices with sublinear complexity	42
Convergence of the block Lanczos method for the trust‐region subproblem in the hard case	21
Inexact inner–outer Golub–Kahan bidiagonalization method: A relaxation strategy	21
Issue Information	19
Structure‐Preserving Model Reduction Approach for Structured Index‐2 Descriptor‐Systems	16
Improved TriCG and TriMR Methods for Symmetric Quasi‐Definite Linear Systems	15
	13
Robust Quaternion Matrix Completion via Fast Randomized Low‐Rank Approximation	12
Stabilized Krylov Subspace Recurrences via Randomized Sketching	12
Refined Error Bounds for Relaxed Greedy Randomized Kaczmarz Methods	11
Accelerated Gradient Descent With Quasi‐Newton Preconditioning for Nearest Correlation Matrix Problems	11
Dynamically accelerating the power iteration with momentum	11
	11
Asymptotics for the eigenvalues of Toeplitz matrices with a symbol having a power singularity	11
A fast and accurate algorithm for solving linear systems associated with a class of negative matrix	10
Optimal polynomial smoothers for multigrid V‐cycles	9
On the efficient preconditioning of the Stokes equations in tight geometries	9
An Inertial‐Relaxed Newton‐Type Projection Method for Solving Nonlinear Equations With Applications	9
A Fast Iterative Method for Variable‐Order Time‐Fractional Optimal Control Problem	8
Total positivity and accurate computations with Gram matrices of Said‐Ball bases	8
A New Matrix Truncation Method for Improving Approximate Factorization Preconditioners	8
Normalized Newton method to solve generalized tensor eigenvalue problems	8
Partially‐Updating Extrapolation Methods for Multilinear PageRank	8
Sine transform based preconditioning techniques for space fractional diffusion equations	8
Randomized Quaternion Generalized Singular Value Decomposition Algorithms With Error Analysis	8

Volume‐based subset selection	8
Dual Perturbation Method for Spectral Solution of Block‐Posed Harmonic Problems	7
A Bernoulli‐Barycentric Rational Matrix Collocation Method With Preconditioning for a Class of Evolutionary PDEs	7
Overlapping Schwarz Methods Are Not Anisotropy‐Robust Multigrid Smoothers	7
Numerical algorithm for estimating a conditioned symmetric positive definite matrix under constraints	7
A Riemannian Gradient Descent Method for Optimization on the Indefinite Stiefel Manifold	7
Randomized low‐rank approximation of parameter‐dependent matrices	7
Modified Greedy Quasi Block Coordinate Descent Method for Solving Linear Least‐Squares Problems	7
A Rational Arnoldi Approach for Sobolev Rational Least Squares Problems	6
Accurate bidiagonal decompositions of Cauchy–Vandermonde matrices of any rank	6
Adaptive Factored Incomplete Inverse Matrices	6
Fast Solution of Sylvester‐Structured Systems for Spatial Source Separation of the Cosmic Microwave Background	6
Chebyshev Smoothing With Adaptive Block‐FSAI Preconditioners for the Multilevel Solution of Higher‐Order Problems With the Partition of Unity Method	5
Issue Information	5
Row‐Aware Randomized SVD With Applications	5
The Block Preconditioned SOR Method for Solving Indefinite Complex Linear Systems	5
Conditioning of hybrid variational data assimilation	5
	5
Robust Low‐Rank Tensor Recovery Using a Self‐Adaptive Learnable Weighted Tensor Total Variation Method	5
Matrix‐less methods for the spectral approximation of large non‐Hermitian Toeplitz matrices: A concise theoretical analysis and a numerical study	5
Study and Use of Spectral Symbol Properties for Isogeometric Matrices on Trimmed Geometries	5
Solution methods to the nearest rotation matrix problem in ℝ3: A comparative survey	4
Signal and image reconstruction with a double parameter Hager–Zhang‐type conjugate gradient method for system of nonlinear equations	4
Issue Information	4
Weighted relaxation for multigrid reduction in time	4
RGDBEK: Randomized Greedy Double Block Extended Kaczmarz Algorithm With Hybrid Parallel Implementation and Applications	4
Multilevel Additive Schwarz Preconditioners for High‐Order Block Implicit Methods for Parabolic Equations	4
A Preconditioner for Solving Linear Programming Problems With Dense Columns	4
CP decomposition for tensors via alternating least squares with QR decomposition	4
	4
Accelerated schemes of compact difference methods for space‐fractional sine‐Gordon equations with distributed delay	4
Practical alternating least squares for tensor ring decomposition	4
A unified rational Krylov method for elliptic and parabolic fractional diffusion problems	4
Randomized Orthogonalization Process With Reorthogonalization	4
Iterative Solution of Forward and Adjoint Systems Using a Nonsymmetric Saddle Point Matrix With Preconditioning	4
Nonlinear approximation of functions based on nonnegative least squares solver	4
Blockwise acceleration of alternating least squares for canonical tensor decomposition	4
A sampling greedy average regularized Kaczmarz method for tensor recovery	4
Toward Genuine Efficiency and Cluster Robustness of Preconditioned CG‐Like Eigensolvers	3
Issue Information	3
Accurate bidiagonal decomposition of Lagrange–Vandermonde matrices and applications	3
A τ Preconditioner for Options Pricing Problem Under Jump‐Diffusion Models	3
Convergence Analysis of an Alternating Nonlinear GMRES on Linear Systems	3
An Extended Krylov Subspace Method for Decoding Edge‐Based Compressed Images by Homogeneous Diffusion	3
Structured Nuclear Norm Matrix Completion: Guaranteeing Exact Recovery via Block‐Column Scaling	3
Three adaptive hybrid derivative‐free projection methods for constrained monotone nonlinear equations and their applications	3
Low‐rank updates of matrix square roots	3
Lower and upper bounds of condition number for Vandermonde‐wise matrices and method of fundamental solutions using pseudo radial‐lines	3
Low‐Rank SPIKE Framework for Solving Large Sparse Linear Systems With Applications	3