Show that the permutation [n, n-1, ... , 2, 1] has n(n-1) inversions.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter4: More On Groups
Section4.1: Finite Permutation Groups
Problem 15E: Exercises
15. Write the permutation as a product of a permutation of order and of order .
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Show that the permutation [n, n-1, ... , 2, 1] has n(n-1) inversions.
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