• 제목/요약/키워드: Generalized strictly diagonally dominant matrices

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A NEW CRITERION FOR SUBDIVISION ITERATION DETERMINATION OF GENERALIZED STRICTLY DIAGONALLY DOMINANT MATRICES

  • HUI SHI;XI CHEN;QING TUO;LE WU
    • Journal of Applied and Pure Mathematics
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    • 제5권5_6호
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    • pp.303-313
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    • 2023
  • Generalized strictly diagonally dominant matrices have a wide range of applications in matrix theory and practical applications, so it is of great theoretical and practical value to study their numerical determination methods. In this paper, we study the numerical determination of generalized strictly diagonally dominant matrices by using the properties of generalized strictly diagonally dominant matrices. We obtain a new criterion for subdivision iteration determination of the generalized strictly diagonally dominant matrices by subdividing the set of non-prevailing row indices and constructing new iteration factors for the set of predominant row indices, new elements of the positive diagonal factors are derived. Advantages are illustrated by numerical examples.