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O problema de tip Hahn-Banach 1
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O problema de tip Hahn-Banach 1
Posted:
Wed Oct 03, 2007 11:49 pm
by
Cezar Lupu
Fie
\( E \)
un spatiu vectorial normat si
\( x_{0}\in E \)
astfel incat
\( x_{0}\neq 0 \)
. Atunci exista
\( f\in E^{*} \)
astfel incat
\( f(x_{0})=1 \)
.