Numerische Mathematik

, Volume 16, Issue 5, pp 435–441 | Cite as

A note on a paper of Johnston and Smith's concerning best isolated Gerschgorin disks

  • Helen I. Medley


Mathematical Method Gerschgorin Disk 


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  1. 1.
    Johnston, R. L., Smith, B. T.: Calculation of best isolated Gerschgorin discs. Numer. Math. (to appear).Google Scholar
  2. 2.
    Henrici, Peter: Elements of numerical analysis. New York: John Wiley & Sons, Inc. 1964.Google Scholar
  3. 3.
    Medley, H. I., Varga, R. S.: On smallest isolated disks for eigenvalues II. Numer. Math.11, 320–323 (1968).Google Scholar
  4. 4.
    Varga, R. S.: Matrix iterative analysis. Englewood Cliffs, New Jersey: Prentice-Hall 1962.Google Scholar
  5. 5.
    —— On smallest isolated Gerschgorin disks for eigenvalues. Numer. Math.6, 366–376 (1964).Google Scholar

Copyright information

© Springer-Verlag 1971

Authors and Affiliations

  • Helen I. Medley
    • 1
  1. 1.Dep. of MathematicsKent State UniversityKentUSA

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