Inversion Statistic

See also

Weighted Inversion Statistic

References

Degenhardt, S. L. and Milne, S. C. "Weighted Inversion Statistics and Their Symmetry Group." J. Combin. Th. Ser. A. 90, 49-103, 2000. http://www.math.ohio-state.edu/~milne/preprints.html.