Almost surjective $\varepsilon $-isometries of Banach spaces
Tom 100 / 2004
Colloquium Mathematicum 100 (2004), 17-22
MSC: Primary 46B20.
DOI: 10.4064/cm100-1-3
Streszczenie
We investigate Hyers–Ulam stability of non-surjective $\varepsilon $-isomeries of Banach spaces. We also pose and discuss an open problem.