Perturbation theorems for the matrix eigenvalue problem
In: Portugaliae Mathematica, Jg. 43 H. 1, S. 69-761986
The relationship between Hadamard and conventional multiplication for positive definite matrices
In: Linear algebra and its applications, Jg. 92, S. 231-2401987A remark on simultaneous inclusions of the zeros of a polynomial by Gershgorin's theorem
In: Numerische Mathematik, Jg. 21 H. 5, S. 425-4271973Self-equivalent flows associated with the generalized eigenvalue problem
In: Linear algebra and its applications, Jg. 118, S. 107-1271989Self-equivalent flows associated with the singular value decomposition
In: SIAM Journal on matrix analysis and applications, Jg. 10 H. 2, S. 244-2581989Spectral radii of certain iteration matrices and cycle means of digraphs
In: Linear algebra and its applications, Jg. 192, S. 61-811993Symmetries and variation of spectra
In: Canadian journal of mathematics, Jg. 44 H. 6, S. 1155-11661992Theory of decomposition and bulge-chasing algorithms for the generalized eigenvalue problem
In: SIAM Journal on matrix analysis and applications, Jg. 15 H. 3, S. 943-9671994Variation of the discrete eigenvalues of normal operators
In: Proceedings of the American Mathematical Society, Jg. 123 H. 8, S. 2511-25171995