作者sinoky (sinoky)
看板Math
标题[分析] About measurable function.
时间Sun Nov 13 23:00:59 2011
Thm:
If f,g are measurable function,
then f+g and fg are measurable ( if both finite).
问如果没有 finite 这个条件 ， fg 还会是 measuralbe 吗?
如果是对的，要如何证明呢?
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1F：→ THEJOY :0‧±∞和±∞‧0这类undefined要另外定义才可 11/13 23:32