NEW MAJORIZATION FOR BOUNDED LINEAR OPERATORS IN HILBERT SPACES
This work aims to introduce and investigate a preordering in $B(\mathcal{H}),$ the Banach space of all bounded linear operators defined on a complex Hilbert space $\mathcal{H}.$ It is called strong majorization and denoted by $S\prec_{s}T,$ for $S,T\in B(\mathcal{H}).$ The strong majorization follows majorization defined by Barnes, but not vice versa. If $S\prec_{s}T,$ then $S$ inherits some properties of $T.$ The strong majorization will be extended for the d-tuple of operators in $B(\mathcal{H})^{d}$ and is called joint strong majorization denoted by $S\prec_{js}T,$ for $S,T\in B(\mathcal{H})^{d}.$ We show that some properties of strong majorization are satisfied for joint strong majorization.
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