Infinite Hankel Block Matrices, Extremal Problems
In this paper we use the matrix analogue of eigenvalue ρ min 2 to formulate and to solve the extremal Nehari problem. Our approach coincides with Arov, Adamyan, Krein approach when ρ min 2 is a scalar matrix.
KeywordsMatrix Nehari problem minimal solution matrix analogue of eigenvalue Communicated by V. Bolotnikov
Mathematics Subject Classification (2000)Primary 15A57 Secondary 47B10
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