Lu Zhang

collaborators

2 papers

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.NA2014

A framework of the harmonic Arnoldi method for evaluating $φ$ -functions with applications to exponential integrators

Gang Wu, Lu Zhang, Ting-ting Xu

In recent years, a great deal of attention has been focused on numerically solving exponential integrators. The important ingredient to the implementation of exponential integrator…

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

A framework of the harmonic Arnoldi method for evaluating φ-functions with applications to exponential integrators

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

A framework of the harmonic Arnoldi method for evaluating $φ$ -functions with applications to exponential integrators