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tzhwang03金蟲 (正式寫手)
神瑛侍者
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[求助]
請(qǐng)教一個(gè)數(shù)學(xué)符號(hào)的含義 已有1人參與
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專家顧問 (著名寫手)
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專家經(jīng)驗(yàn): +342 |

專家顧問 (著名寫手)
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專家經(jīng)驗(yàn): +342 |
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L2 is the function space whose element's square is integrable. H1 is a sobolev space, basically the function and it's first order weak derivative are in L2. [ 發(fā)自手機(jī)版 http://www.gaoyang168.com/3g ] |

新蟲 (著名寫手)
金蟲 (正式寫手)
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專家顧問 (著名寫手)
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專家經(jīng)驗(yàn): +342 |
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1. The first and the second are the same, i.e. L2. The third one, I'm not sure, whether it means the absolute value function of the second order derivative is in L2. 2. H1 is both, since it's complete inner product space, that is Hilbert space. Here H1 is also with compact support. The test function has first order weak derivative but u doesn't necessarily have. After using Greens formula, the derivative of u will go to testing function [ 發(fā)自手機(jī)版 http://www.gaoyang168.com/3g ] |

金蟲 (正式寫手)
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專家顧問 (著名寫手)
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專家經(jīng)驗(yàn): +342 |

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