[分析] 一個Arela-Ascoli的應用
Let B be contained in C([0,1],R), be closed bounded, and equicontinuous.
1
Let I : B→R definded by I(f) = ∫f(x)dx.
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Show that there is g in B at which the vaulve of I is maximized.
這是我在marsden中看到的題目,但是花了一段時間還是沒有想出來...
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