The purpose of this paper is to investigate the application of the finite element method of Lagrange multipliers to the problem of approximating the eigenvalues of a selfadjoint elliptic operator ...

Additionally, advancements in parallel computing frameworks have invigorated classical matrix iteration methods, providing robust solutions for large, sparse generalised eigenvalue problems.

The QR algorithm is currently the most popular method for finding all eigenvalues of a full matrix. While QR is now well understood by specialists in eigenvalue computations, this understanding is not ...