Πλοήγηση ανά Συγγραφέα "Adam M., Aretaki A., Spitkovsky I.M."
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Elliptical higher rank numerical range of some Toeplitz matrices
Adam M., Aretaki A., Spitkovsky I.M. (2018)The higher rank numerical range is described for a class of matrices which happen to be unitarily reducible to direct sums of (at most) 2-by-2 blocks. In particular, conditions are established under which tridiagonal ...