A refined Jacobi-Davidson method for the quadratic eigenvalue problem
Zhongxiao Jia, Yuquan Sun · International Conference on Applied Mathematics · 2006
This paper presents a refined projection method for quadratic eigenvalue problems and proposes a new extraction method and a correction equation for the quadratic Jacobi-Davidson method. Then it gives rise to a new refined quadratic Jacobi-Davidson method. Preliminary numerical examples illustrate the superiority of the new method.