The unit ball of every infinite-dimensional normed linear space contains a (1+ɛ)-separated sequence

DOI10.4064/cm-44-1-105-109zbMath0493.46014OpenAlexW910426389MaRDI QIDQ3955897

John H. Elton, Edward Odell

Publication date: 1981

Published in: Colloquium Mathematicum (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.4064/cm-44-1-105-109

zbMATH Keywords

block basic sequences(1+epsilon)-separated sequenceasymptotically monotone normalized basic sequence

Mathematics Subject Classification ID

Geometry and structure of normed linear spaces (46B20) Classical Banach spaces in the general theory (46B25) Summability and bases; functional analytic aspects of frames in Banach and Hilbert spaces (46B15)

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