v0.3.4
ArnoldiMethod v0.3.4
This release implements purging of converged, unwanted Ritz values. This should improve stability of the Krylov-Schur restart, as previously converged but unwanted Ritz values caused tiny residuals, which appear in a vector we need to compute a reflector for, leading to instabilities. For additional stability, we also implement the initial rotations in the Krylov-Schur restart through Given's rotations instead of Householder reflections. The square H matrix is brought back with Householder reflections afterwards.