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The Relation Between the QR and LR Algorithms
1998
SIAM Journal on Matrix Analysis and Applications
For an Hermitian matrix the QR transform is diagonally similar to two steps of the LR transforms. Even for non-Hermitian matrices the QR transform may be written in rational form.
doi:10.1137/s0895479896299937
fatcat:5wnerq6ndvf3djpinm4z5r437u