作者kemowu (小展)
看板Math
標題[分析] 一題線性算子的問題
時間Tue Jun 9 22:42:12 2009
2
Let L be a linear operator defined on C [-1,1] by
d 2 df
Lf = --((1-x ) --)
dx dx
Show that L is compact, i.e., for every bounded sequence {f_n}, the sequence
{Lf_n} consists a convergent subsequence.
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