大学物理 ›› 2011, Vol. 30 ›› Issue (7): 1-1.

• 第一段 •    下一篇

关于数学物理方法课程的若干问答(续2)

吴崇试   

  1. 北京大学物理学院,北京100871
  • 出版日期:2011-07-25 发布日期:2011-07-20

Questions and answers in the course of "methods of mathematical physics"

  • Online:2011-07-25 Published:2011-07-20

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不变性。

关键词: methods, of, mathematical, physics, function, of, one, complex, variable, equations, of, mathematical, physics

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.

Key words: methods of mathematical physics, function of one complex variable, equations of mathematical physics

中图分类号: 

  • O411.1