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SP::X2Dim -- specialization in X Schubert basis

Call(s)


SP::X2Dim(schub)

Parameters

schub- any expression in the X Schubert basis

Introduction

The SP::X2Dim function specializes in x.i=1 all Schubert polynomials in schub, expressed in X Schubert basis.

When used with the second argument q, it specializes in x.i=q^(i-1) all Schubert polynomials.

Example 1

>> muEC::SP::X2Dim(a*X[3,1,2] - b*X[2,3,1,5,4] + c^3);
                                          3
                               a - 4 b + c
>> muEC::SP::X2Dim(X[2,3,1,5,4] - a*X[3,1,4,2], q);
                            2    3    4           2
                       q + q  + q  + q  - a (q + q )

Related Functions

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MuPAD Combinat, an open source algebraic combinatorics package