Comments on "some results on pole-placement and reachability"

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We present various comments on a question about systems over rings posed in a recent note by Sharma, proving that a ring R is pole assignable if and only if, for every reachable system (F, G), G contains a rank-one summand of the state space. We also provide a generalization to deal with dynamic feedback.

Original languageEnglish (US)
Pages (from-to)79-83
Number of pages5
JournalSystems and Control Letters
Issue number1
StatePublished - Oct 1986

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Computer Science(all)
  • Mechanical Engineering
  • Electrical and Electronic Engineering


  • Feedback
  • Pole placement
  • Systems over rings


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