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Let-E-be-a-banach-space-Y-is-normed-space-and-suppose-that-Ta-a-A-B-E-Y-If-Tax-a-A-Y-is-bounded-for-all-x-E-then-Ta-a-A-is-bounded-




Question Number 7499 by Tawakalitu. last updated on 31/Aug/16
Let E be a banach space , Y is normed space and   suppose that {Ta : a∈A} ⊆  B (E, Y) If {Tax : a∈A}  ⊆ Y is bounded , for all x∈E, then {∥Ta∥ : a∈A} is   bounded.
LetEbeabanachspace,Yisnormedspaceandsupposethat{Ta:aA}B(E,Y)If{Tax:aA}Yisbounded,forallxE,then{Ta:aA}isbounded.

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