2 papers
physics.optics2021
Computing leaky modes of optical fibers using a FEAST algorithm for polynomial eigenproblems
Jay Gopalakrishnan, Benjamin Quanah Parker, Pieter Vandenberge
An efficient contour integral technique to approximate a cluster of nonlinear eigenvalues of a polynomial eigenproblem, circumventing certain large inversions from a linearization,…
math.NA2019
Analysis of FEAST spectral approximations using the DPG discretization
Jay Gopalakrishnan, Luka Grubišić, Jeffrey Ovall +1
A filtered subspace iteration for computing a cluster of eigenvalues and its accompanying eigenspace, known as "FEAST", has gained considerable attention in recent years. This work…