Summary
The projection constants of hyperplanes in the classical sequence spaces (c 0 ) and (l 1 ) are determined, together with the projections of minimum norm.
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References
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Entrata in Redazione I'll dicembre 1972.
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Blatter, J., Cheney, E.W. Minimal projections on hyperplanes in sequence spaces. Annali di Matematica 101, 215–227 (1974). https://doi.org/10.1007/BF02417105
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DOI: https://doi.org/10.1007/BF02417105