Affiliation:
1. Department of Mathematics, Harbin University of Science and Technology , Harbin 150080 , China
Abstract
Abstract
We focus on the problem of generalized orthogonality of matrix operators in operator spaces. Especially, on
ℬ
(
l
1
n
,
l
p
n
)
(
1
≤
p
≤
∞
)
{\mathcal{ {\mathcal B} }}\left({l}_{1}^{n},{l}_{p}^{n})\left(1\le p\le \infty )
, we characterize Birkhoff orthogonal elements of a certain class of matrix operators and point out the conditions for matrix operators which satisfy the Bhatia-Šemrl property. Furthermore, we give some conclusions which are related to the Bhatia-Šemrl property. In a certain class of matrix operator space, such as
ℬ
(
l
∞
n
)
{\mathcal{ {\mathcal B} }}\left({l}_{\infty }^{n})
, the properties of the left and right symmetry are discussed. Moreover, the equivalence condition for the left symmetry of Birkhoff orthogonality of matrix operators on
ℬ
(
l
p
n
)
(
1
<
p
<
∞
)
{\mathcal{ {\mathcal B} }}\left({l}_{p}^{n})\left(1\lt p\lt \infty )
is obtained.