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چکیده
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t. Consider four complex matrices A ∈ C n×n , B ∈ C n×m, C ∈ C m×n and D ∈ C m×m and a set Σ consisting of k ⩽ m distinct complex numbers, λ1, λ2, · · ·, , λk , such that all of them are not eigenvalues of matrix A. In this paper we find the spectral distance from D to matrices X ∈ C m×m such that λ1, λ2, · · ·, , λk are eigenvalues of the matrix Å A B C Xã .
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