| 关于数学物理方法课程的若干问答(续2) |
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| 引用本文： | 吴崇试.关于数学物理方法课程的若干问答(续2)[J].大学物理,2011,30(7):1-4,22. |
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| 作者姓名： | 吴崇试 |
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| 作者单位： | 北京大学物理学院,北京,100871 |
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| 摘 要： | 26如果偏微分方程具有一定的对称性(不变性),它的解是否一定具有同样的对称性(不变性)?不一定!例如,二维拉普拉斯方程具有平移不变性、反射不变性以及旋转不变性,但是它的解x或y就不具有这些不变性.同样,x2-y2也是二维拉普拉斯方程的解,但是它也不具有平移不变性和旋转
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| 关 键 词： | methods of mathematical physics function of one complex variable equations of mathematical physics |
Questions and answers in the course of methods of mathematical physics |
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| WU Chong-shi.Questions and answers in the course of methods of mathematical physics[J].College Physics,2011,30(7):1-4,22. |
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| Authors: | WU Chong-shi |
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| Institution: | WU Chong-shi(School of Physics,Peking University,Bejing 100871,China) |
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| Abstract: | A series of questions,which are frequently emerged in the teaching of course of methods of mathematical physics but were rarely discussed in the textbooks,are listed.The answers or explanations are given in some detail. |
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| Keywords: | methods of mathematical physics function of one complex variable equations of mathematical physics |
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