• شماره ركورد كنفرانس
    5263
  • عنوان مقاله

    A NOTE ON SECTOR MATRICES

  • پديدآورندگان

    Mohammadzadehkan Hamideh mohammadzadeh83com@gmail.com Department of Mathematics Payame Noor University, P.O. Box 19395-3697 Tehran, Iran , Malekinejad Somayeh maleki60313@gmail.com Department of Mathematics Payame Noor University, P.O. Box 19395-3697 Tehran, Iran.

  • تعداد صفحه
    4
  • كليدواژه
    Accretive operator , Inequality mean , Operator mean , Linear map , Sector matrix
  • سال انتشار
    1402
  • عنوان كنفرانس
    54 امين كنفرانس رياضي ايران
  • زبان مدرك
    انگليسي
  • چكيده فارسي
    Let Sθ (0 ≤ θ π2) stands for the set of all complexsector matrices and σ be an operator mean. Except some otherassertions, it is also shown that for A, B ∈ Sθ, and positive unitallinear map Φ,ℜpΦ(AσB) ≤ sec2p(θ) αpℜpΦ(Aσ∗B),where α = max{K, 41− 2p K}, 0 ≤ p ≤ 1.
  • كشور
    ايران