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arXiv math-ph/0405036math-phhep-thmath.MP
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U(n)群上的不变量积分和群论积分

Invariant and Group Theoretical Integrations over the U(n) Group

S. Aubert, C. S. Lam

摘要:

在前一篇文章中,介绍了一种计算U(n)群上单项积分的“不变方法”。在本文中,我们研究了更传统的群论方法,并比较了它的优点和缺点与不变的方法。因此,我们能够引入一种“混合方法”,它结合了其他两种方法各自的优势。本文中有许多示例说明了这些方法中的每一种是如何工作的。

英文摘要:

In a previous article, an `invariant method' to calculate monomial integrals over the U(n) group was introduced. In this paper, we study the more traditional group-theoretical method, and compare its strengths and weaknesses with those of the invariant method. As a result, we are able to introduce a `hybrid method' which combines the respective strengths of the other two methods. There are many examples in the paper illustrating how each of these methods works.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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