正交群上单项式的积分
Integrals of monomials over the orthogonal group
摘要:
推导出一个递归公式,它允许评估不变的积分正交群O(N),其中的被积函数是一个任意有限单项式的矩阵元素的组。这种积分的值可以表示为$N$中部分分数的有限和。该递推公式在很大程度上推广了现有的正交群积分公式。
英文摘要:
A recursion formula is derived which allows to evaluate invariant integrals over the orthogonal group O(N), where the integrand is an arbitrary finite monomial in the matrix elements of the group. The value of such an integral is expressible as a finite sum of partial fractions in $N$. The recursion formula largely extends presently available integration formulas for the orthogonal group.
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