Changes between Initial Version and Version 1 of Ticket #11641


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Timestamp:
08/02/11 00:05:01 (10 years ago)
Author:
stumpc5
Comment:

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  • Ticket #11641 – Description

    initial v1  
    1 tba
     1An example:
     2
     3{{{
     4sage: I = [ p,p.major_index()+2*p.number_of_inversions()-34*p.number_of_descents()) for p in Permutations(3) ]
     5
     6sage: find_combinatorial_statistic(I)
     7The tested combinatorial statistics on Standard permutations with values in Integer Ring where
     8imajor_index
     9longest_increasing_subsequence_length
     10major_index
     11number_of_descents
     12number_of_fixed_points
     13number_of_idescents
     14number_of_inversions
     15number_of_peaks
     16number_of_saliances
     17
     18((0, 0, 1, -34, 0, 0, 2, 0, 0), Free module of degree 9 and rank 3 over Integer Ring
     19Echelon 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}}}