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    • On Subspace Codisk-Cyclicity 

      Jamil, Zeana Z.; Hamada, Nuha H. (University of Baghdad-College of Science, 2023)
      Let N be a subspace of an infinite dimensional complex separable on a Hilbert space ℋ. The operator T ∈ ℬ(ℋ) is said to be N-codisk-cyclic, if there is a nonzero vector y in ℋ, then N ∩ {βTn y: β ∈ ℂ, |β| ≥ 1, n ∈ ℕ} is ...