19 citations · 21 across the 4 of their papers we have counts for
Showing 2020Show all
2 papers · 1 filter
math.NA2020★ 1 cited
Twice is enough for dangerous eigenvalues
Andrew Horning, Yuji Nakatsukasa
We analyze the stability of a class of eigensolvers that target interior eigenvalues with rational filters. We show that subspace iteration with a rational filter is robust even wh…
math.NA2020
Computing spectral measures of self-adjoint operators
Matthew J. Colbrook, Andrew Horning, Alex Townsend
Using the resolvent operator, we develop an algorithm for computing smoothed approximations of spectral measures associated with self-adjoint operators. The algorithm can achieve a…