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The normal ΔH-matrices with connection to some Jacobi-like methods

Authors
Journal
Linear Algebra and its Applications
0024-3795
Publisher
Elsevier
Publication Date
Volume
91
Identifiers
DOI: 10.1016/0024-3795(87)90070-x
Disciplines
  • Computer Science
  • Mathematics

Abstract

Abstract The Δ H-matrices appear in the context of certain maximization and minimization problems. The following purely algebraic problem, arising in connection with certain norm-reducing Jacobi-type algorithms is treated: When is a normal Δ H-matrix diagonal? Final results are obtained in the cases n = 3 and n = 4, and in general for the attractive normal Δ H-matrices.

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