Paraskevas Vassalos

Orcid: 0000-0002-2131-7643

According to our database1, Paraskevas Vassalos authored at least 17 papers between 2002 and 2024.

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

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

Fast Toeplitz eigenvalue computations, joining interpolation-extrapolation matrix-less algorithms and simple-loop theory: The preconditioned setting.
Appl. Math. Comput., April, 2024

2023
Spectral properties of flipped Toeplitz matrices.
CoRR, 2023

From asymptotic distribution and vague convergence to uniform convergence, with numerical applications.
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 conjectures: the preconditioned setting.
CoRR, 2022

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

On a Boundary Updating Method for the Scalar Stefan Problem.
CoRR, 2022

2020
A policy iteration algorithm for the American put option and free boundary control problems.
J. Comput. Appl. Math., 2020

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

2008
Superlinear convergence for PCG using band plus algebra preconditioners for Toeplitz systems.
Comput. Math. Appl., 2008

2006
Two-level Toeplitz preconditioning: approximation results for matrices and functions.
SIAM J. Sci. Comput., 2006

Block band Toeplitz preconditioners derived from generating function approximations: analysis and applications.
Numerische Mathematik, 2006

2005
A preconditioning proposal for ill-conditioned Hermitian two-level Toeplitz systems.
Numer. Linear Algebra Appl., 2005

2004
Matrix algebra preconditioners for multilevel Toeplitz systems do not insure optimal convergence rate.
Theor. Comput. Sci., 2004

2002
New Band Toeplitz Preconditioners for Ill-Conditioned Symmetric Positive Definite Toeplitz Systems.
SIAM J. Matrix Anal. Appl., 2002


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