A note on the Davis-Kahan sin Θ⊖ theorem
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Jianjun Xie
📂
Article
📅
1997
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Elsevier Science
🌐
English
⚖ 181 KB
By using a series of inequalities for singular values of matrix products, we obtain perturbation theorems for invariant subspaces of Hermitian matrices, which are sharper than the second Davis-Kahan sin O theorem.