Gang Wu

activity

20142026

most citedA Kaczmarz Method with Simple Random Sampling for Solving Large Linear Systems

8 citations · 16 across the 14 of their papers we have counts for

collaborators

Showing 2016Show all

3 papers · 1 filter

math.NA2016★ 1 cited

Refined Bounds on the Number of Distinct Eigenvalues of a Matrix After Perturbation

Yunjie Wang, Gang Wu

The eigenproblem of low-rank updated matrices are of crucial importance in many applications. Recently, an upper bound on the number of distinct eigenvalues of a perturbed matrix w…

math.NA2016

A New Method for Computing $φ$ -functions and Their Condition Numbers of Large Sparse Matrices

Gang Wu, Lu Zhang

We propose a new method for computing the $φ$ -functions of large sparse matrices with low rank or fast decaying singular values. The key is to reduce the computation of $φ_{ℓ}$ -…

math.NA2016

On the convergence of harmonic Ritz vectors and harmonic Ritz values

Gang Wu

We are interested in computing a simple eigenpair $(λ, x)$ of a large non-Hermitian matrix $A$ , by a general harmonic Rayleigh-Ritz projection method. Given a search subspace…

Refined Bounds on the Number of Distinct Eigenvalues of a Matrix After Perturbation

A New Method for Computing φ-functions and Their Condition Numbers of Large Sparse Matrices

On the convergence of harmonic Ritz vectors and harmonic Ritz values

A New Method for Computing $φ$ -functions and Their Condition Numbers of Large Sparse Matrices