→ willydp :1. 你想問的應該是{f_n}--ゝf? 05/26 18:04
→ Vulpix :看來是weak conv.沒錯，就直接證明XD 05/26 18:20
推 JASS0213 :2.就直接考慮\chi_{(2^{-n},2^{-n+1})}即可 05/31 09:47
1. Let 1<p<∞ and f_0 belong to L^p(R). For each natural number n, define
f_n(x)=f_0(x-n) for all x. Define f=0 on R. Show that {f_n}-->f in L^p(R). Is
this true for p=1?
2. Let [a,b] be a nondegenerate closed, bounded interval. In the Banach space
C[a,b], normed by the maximum norm, find a bounded sequence that fails to
have any strongly convergent subsequence.
感謝各位實變高手能給我一些解答或方向!
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