BIB-VERSION:: CS-TR-v2.0 ID:: STAN//CS-TR-67-59 ENTRY:: January 03, 1996 ORGANIZATION:: Stanford University, Department of Computer Science TITLE:: Almost diagonal matrices with multiple or close eigenvalues TYPE:: Technical Report AUTHOR:: Wilkinson, James H. DATE:: April 1967 PAGES:: 19 ABSTRACT:: If A = D + E where D is the matrix of diagonal elements of A, then when A has some multiple or very close eigenvalues, E has certain characteristic properties. These properties are considered both for hermitian and non-hermitian A. The properties are important in connexion with several algorithms for diagonalizing matrices by similarity transformations. NOTES:: [Adminitrivia V1/Prg/19960103] END:: STAN//CS-TR-67-59