Abstract
Relative projection constants and strong unicity constants for a certain class of projection operators on the space l 2 n∞ are found. The maximum values of strong unicity constants are calculated for the projection operators with unit norm on certain codimension-2 subspaces formed by using hyperplanes in l 2 n∞ .
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Russian Text © The Author (s), 2019. Published in Funktsional’ nyi Analiz i Ego Prilozheniya, 2019, Vol. 53, No. 3, pp.33–14.
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Martynov, O.M. Projection Constants of a Class of Codimension-2 Subspaces in l 2 n∞ . Funct Anal Its Appl 53, 182–191 (2019). https://doi.org/10.1134/S0016266319030031
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DOI: https://doi.org/10.1134/S0016266319030031