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.
كليدواژه :
Accretive operator , Inequality mean , Operator mean , Linear map , Sector matrix
عنوان كنفرانس :
54 امين كنفرانس رياضي ايران
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.
