论文信息 - ON AN INVERSE EIGENVALUE PROBLEM FOR UNITARY HESSENBERG MATRICES

ON AN INVERSE EIGENVALUE PROBLEM FOR UNITARY HESSENBERG MATRICES

Abstract We show that a unitary upper Hessenberg matrix with positive subdiagonal elements is uniquely determined by its eigenvalues and the eigenvalues of a modified principal submatrix. This provides an analog of a well-known result for Jacobi matrices.

Gregory S. Ammar | G. Ammar | Chunyang He | Chunyang He

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