Changes between Initial Version and Version 1 of Ticket #11641
 Timestamp:
 08/02/11 00:05:01 (10 years ago)
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Ticket #11641 – Description
initial v1 1 tba 1 An example: 2 3 {{{ 4 sage: I = [ p,p.major_index()+2*p.number_of_inversions()34*p.number_of_descents()) for p in Permutations(3) ] 5 6 sage: find_combinatorial_statistic(I) 7 The tested combinatorial statistics on Standard permutations with values in Integer Ring where 8 imajor_index 9 longest_increasing_subsequence_length 10 major_index 11 number_of_descents 12 number_of_fixed_points 13 number_of_idescents 14 number_of_inversions 15 number_of_peaks 16 number_of_saliances 17 18 ((0, 0, 1, 34, 0, 0, 2, 0, 0), Free module of degree 9 and rank 3 over Integer Ring 19 Echelon basis matrix: 20 [ 3 0 0 0 2 4 5 3 6] 21 [ 0 1 3 0 1 3 1 3 0] 22 [ 0 0 0 1 0 1 0 0 0]) 23 }}}