Sven-Erik Ekström

Orcid: 0000-0002-7875-7543

According to our database1, Sven-Erik Ekström authored at least 20 papers between 2018 and 2024.

Collaborative distances:
  • Dijkstra number2 of five.
  • Erdős number3 of four.

Timeline

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Bibliography

2024
Matrix-less methods for the spectral approximation of large non-Hermitian Toeplitz matrices: A concise theoretical analysis and a numerical study.
Numer. Linear Algebra Appl., August, 2024

2023
Spectral properties of flipped Toeplitz matrices.
CoRR, 2023

From asymptotic distribution and vague convergence to uniform convergence, with numerical applications.
CoRR, 2023

On the eigenvalues of Toeplitz matrices with two off-diagonals.
CoRR, 2023

2022
Preconditioners for fractional diffusion equations based on the spectral symbol.
Numer. Linear Algebra Appl., 2022

A matrix-less method to approximate the spectrum and the spectral function of Toeplitz matrices with real eigenvalues.
Numer. Algorithms, 2022

Fast Toeplitz eigenvalue computations, joining interpolation-extrapolation matrix-less algorithms and simple-loop theory.
Numer. Algorithms, 2022

A note on the eigenvalues, singular values, and eigenvectors of Toeplitz and Hankel matrices.
CoRR, 2022

A note on the spectral analysis of matrix sequences via GLT momentary symbols: from all-at-once solution of parabolic problems to distributed fractional order matrices.
CoRR, 2022

2021
Spectral and norm estimates for matrix sequences arising from a finite difference approximation of elliptic operators.
CoRR, 2021

2020
A Multigrid Method for Nonlocal Problems: Non-Diagonally Dominant or Toeplitz-Plus-Tridiagonal Systems.
SIAM J. Matrix Anal. Appl., 2020

Eigenpairs of some particular band Toeplitz matrices: A comment.
Numer. Linear Algebra Appl., 2020

Momentary Symbol: Spectral Analysis of Structured Matrices.
CoRR, 2020

Eigenvalues and Eigenvectors of Tau Matrices with Applications to Markov Processes and Economics.
CoRR, 2020

2019
A matrix-less and parallel interpolation-extrapolation algorithm for computing the eigenvalues of preconditioned banded symmetric Toeplitz matrices.
Numer. Algorithms, 2019

A Matrix-Less Method to Approximate the Spectrum and the Spectral Function of Toeplitz Matrices with Complex Eigenvalues.
CoRR, 2019

2018
Are the eigenvalues of the B-spline isogeometric analysis approximation of -Δu = λu known in almost closed form?
Numer. Linear Algebra Appl., 2018

Eigenvalues and eigenvectors of banded Toeplitz matrices and the related symbols.
Numer. Linear Algebra Appl., 2018

Are the eigenvalues of preconditioned banded symmetric Toeplitz matrices known in almost closed form?
Numer. Algorithms, 2018

Are the Eigenvalues of Banded Symmetric Toeplitz Matrices Known in Almost Closed Form?
Exp. Math., 2018


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