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  • Author

    • Bourahla, Asma (1)
    • Gasmi, Naziha (1)
  • Subject

    • Spectral properties , posinormal operators (1)
    • Spectral properties, posinormal operators (1)
    • ... View More
  • Date Issued

    • 2021 (1)
  • Has File(s)

    • Yes (1)