Banach spaces and bilipschitz maps
Tom 103 / 1992
Studia Mathematica 103 (1992), 291-294
DOI: 10.4064/sm-103-3-291-294
Streszczenie
We show that a normed space E is a Banach space if and only if there is no bilipschitz map of E onto E ∖ {0}.
