Krylov-based order reduction using Laguerre series expansion

Rudy Eid, Behnam Salimbahrami, Boris Lohmann

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


This paper presents Krylov-based model order reduction based on the Laguerre description of the system's transfer function. Starting from the Laguerre-based reduction method for state space systems, two extensions are proposed for the reduction of systems of second-order structures. In addition, the connection between the classical moment matching and the Laguerre-based reduction approaches is investigated and their equivalence under specific conditions is presented.

Original languageEnglish
Pages (from-to)435-449
Number of pages15
JournalMathematical and Computer Modelling of Dynamical Systems
Issue number5
StatePublished - Oct 2008


  • Krylov subspace
  • Laguerre series
  • Order reduction


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