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mathematic

金虫 (小有名气)

[求助] 请问,有谁知道临界点理论中(C)条件中

请问,有谁知道临界点理论中(C)条件中:||∇f|| is not bounded away from zero怎么翻译呢?

[ Last edited by mathematic on 2012-5-7 at 15:51 ]
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whyhow

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【答案】应助回帖

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mathematic: 金币+1 2012-05-14 10:03:35
我理解的意思是: ||∇f||没有正下界

这样∇f才可能在临界点处为零向量
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4楼2012-05-07 20:50:12
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zc_deng78855

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【答案】应助回帖

感谢参与,应助指数 +1
||∇f|| 在远离零点的地方是无界的
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2楼2012-05-07 15:52:53
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mathematic

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2楼: Originally posted by zc_deng78855 at 2012-05-07 15:52:53:
||∇f|| 在远离零点的地方是无界的

似乎不对啊:C条件说的是
Condition (C). The closure of any nonempty subset S of H on which f is bounded but on which ||∇f|| is not bounded away from zero, contains a critical point of f.
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3楼2012-05-07 17:00:54
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