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@INPROCEEDINGS{DiNapoli:868382,
      author       = {Di Napoli, Edoardo and Winkelmann, Jan and Kollnig, Konrad},
      title        = {{O}ptimizing rational filters for interior eigenvalue
                      solvers},
      reportid     = {FZJ-2019-06911},
      year         = {2019},
      abstract     = {Rational filter functions can be used to improve the
                      convergence of the so-called contour-based eigensolvers, a
                      popular family of algorithms for the solution of the
                      interior eigenvalue problem. This talk provide an overview
                      on how such filters can be optimized for performance and
                      convergence based on a non-convex weighted Least-Square
                      scheme.The net result is an almost parameter-free
                      minimization framework with an enhanced usability and
                      productivity which leads to rational functions outperforming
                      state-of-art filters.},
      month         = {Oct},
      date          = {2019-10-21},
      organization  = {SPPEXA Final Symposium 2019, Dresden
                       (Germany), 21 Oct 2019 - 23 Oct 2019},
      subtyp        = {Invited},
      cin          = {JSC},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {511 - Computational Science and Mathematical Methods
                      (POF3-511) / Simulation and Data Laboratory Quantum
                      Materials (SDLQM) (SDLQM)},
      pid          = {G:(DE-HGF)POF3-511 / G:(DE-Juel1)SDLQM},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/868382},
}