(cross-post from https://math.stackexchange.com/questions/4928836/krylov-update-after-column-change)
Having a Krylov space of A
[V, H] = Arnoldi(A, v1, m),
how to update V and H after adding vector dAk to the kth column, without storing A?
(cross-post from https://math.stackexchange.com/questions/4928836/krylov-update-after-column-change)
Having a Krylov space of A
[V, H] = Arnoldi(A, v1, m),
how to update V and H after adding vector dAk to the kth column, without storing A?