Weingarten function
Appearance
In mathematics, Weingarten functions rational functions indexed by partitions of integers that can be used to calculate integrals of moments over classical groups.
References
Weingarten, Don (1978), "Asymptotic behavior of group integrals in the limit of infinite rank", Journal of Mathematical Physics, 19 (5): 999–1001, doi:10.1063/1.523807, ISSN 0022-2488, MR0471696