Geodesic
Norm estimates for matrices with arbitrary elements constant in binary blocks
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 3 (2020), pp. 46-48 Cet article a éte moissonné depuis la source Math-Net.Ru

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A sequence of recursively constructed matrices which are dyadic analogues of Hilbert matrices is considered. The operator norm of these matrices in a Euclidean space is studied. Estimates of norms of matrices optimal in order and their lower triangular parts are obtained. 
@article{VMUMM_2020_3_a6,
     author = {E. M. Dyuzhev},
     title = {Norm estimates for matrices with arbitrary elements constant in binary blocks},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {46--48},
     year = {2020},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2020_3_a6/}
}
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E. M. Dyuzhev. Norm estimates for matrices with arbitrary elements constant in binary blocks. Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 3 (2020), pp. 46-48. http://geodesic.mathdoc.fr/item/VMUMM_2020_3_a6/

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[2] Dyuzhev E. M., “Ob otsenke norm matrits s elementami, postoyannymi v dvoichnykh blokakh”, Matem. zametki, 104:5 (2018), 771–774 | MR | Zbl