<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Thanks, Jose. <div class=""><br class=""></div><div class="">How difficult would it be to add the support for the general case (if at all possible)? </div><div class=""><br class=""></div><div class="">My eigenvalue problem is of the form shown in the attachment. Beta is the eigenvalue and X_s^\Delta is the eigenvector. While some of the matrices are known, others are defined only as matrix vector products. </div><div class=""><br class=""></div><div class="">I am interested in eigenvalues with the largest real part. I expect to find complex eigenvalues, although for a small subset of cases these will be real. </div><div class=""><br class=""></div><div class="">What is your recommendation for attacking this problem with the nonlinear eigenvalue support in Slepc? </div><div class=""><br class=""></div><div class="">Would appreciate your guidance. </div><div class=""><br class=""></div><div class="">Regards,</div><div class="">Manav</div><div class=""><br class=""></div><div class=""></div></body></html>