activity
20062024
most citedTurbo charging time-dependent density-functional theory with Lanczos chains

274 citations · 661 across the 37 of their papers we have counts for

collaborators

39 papers

math.NA2024★ 15 cited

Cucheb: A GPU implementation of the filtered Lanczos procedure

Jared L. Aurentz, Vassilis Kalantzis, Yousef Saad

This paper describes the software package Cucheb, a GPU implementation of the filtered Lanczos procedure for the solution of large sparse symmetric eigenvalue problems. The filtere…

math.NA2023

Gradient-type subspace iteration methods for the symmetric eigenvalue problem

Foivos Alimisis, Yousef Saad, Bart Vandereycken

This paper explores variants of the subspace iteration algorithm for computing approximate invariant subspaces. The standard subspace iteration approach is revisited and new varian…

math.NA2023★ 3 cited

NLTGCR: A class of Nonlinear Acceleration Procedures based on Conjugate Residuals

Huan He, Ziyuan Tang, Shifan Zhao +2

This paper develops a new class of nonlinear acceleration algorithms based on extending conjugate residual-type procedures from linear to nonlinear equations. The main algorithm ha…

math.NA2023

On the tubular eigenvalues of third-order tensors

Fatemeh P. A. Beik, Yousef Saad

This paper introduces the notion of tubular eigenvalues of third-order tensors with respect to T-products of tensors and analyzes their properties. A focus of the paper is to discu…

cs.LG2022★ 3 cited

An Efficient Nonlinear Acceleration method that Exploits Symmetry of the Hessian

Huan He, Shifan Zhao, Ziyuan Tang +3

Nonlinear acceleration methods are powerful techniques to speed up fixed-point iterations. However, many acceleration methods require storing a large number of previous iterates an…

cs.MS2022

parGeMSLR: A Parallel Multilevel Schur Complement Low-Rank Preconditioning and Solution Package for General Sparse Matrices

Tianshi Xu, Vassilis Kalantzis, Ruipeng Li +3

This paper discusses parGeMSLR, a C++/MPI software library for the solution of sparse systems of linear algebraic equations via preconditioned Krylov subspace methods in distribute…