Lower bounds for approximate factorizations via semidefinite programming (extended abstract)

  • Erich Kaltofen*
  • , Bin Li
  • , Kartik Sivaramakrishnan
  • , Zhengfeng Yang
  • , Lihong Zhi
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The problem of approximately factoring a real or complex multivariate polynomial f seeks minimal perturbations Δf to the coefficients of the input polynomial f so that the deformed polynomial f + Δf has the desired factorization properties. Efficient algorithms exist that compute the nearest real or complex polynomial that has non-trivial factors (see [3, 6] and the literature cited there). Here we consider the solution of the arising optimization problems using polynomial optimization (POP) via semidefinite programming (SDP).We restrict to real coefficients in the input and output polynomials.

Original languageEnglish
Title of host publicationSNC'07 - Proceedings of the 2007 International Workshop on Symbolic-Numeric Computation
Pages203-204
Number of pages2
DOIs
StatePublished - 2007
Externally publishedYes
EventSNC'07 - 2007 International Workshop on Symbolic-Numeric Computation - London, ON, Canada
Duration: 25 Jul 200727 Jul 2007

Publication series

NameSNC'07 - Proceedings of the 2007 International Workshop on Symbolic-Numeric Computation

Conference

ConferenceSNC'07 - 2007 International Workshop on Symbolic-Numeric Computation
Country/TerritoryCanada
CityLondon, ON
Period25/07/0727/07/07

Keywords

  • Approximate factorization
  • Hybrid method
  • SDP

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