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TYP::IssA -- tests whether the argument is a generator of the s-basis on a formal alphabet expression

Call(s)


TYP::IssA(expr)

Parameters

expr- any expression

Introduction

The TYP::IssA function tests whether expr is a generator of the s-basis on a formal alphabet expression, that is a Schur function on a given alphabet.

The indexing vector must be a partition.

The alphabet can be for instance a polynomial in A1, A2, ....

Note that the Ai's are the only formal variables in alphabets.

Example 1

>> muEC::TYP::IssA( s[](A1-A2) );
                                   TRUE
>> muEC::TYP::IssA( s[3,3,1](k/3*A3) );
                                   TRUE

Related Functions

IseA, IshA, IsmA, IspA, SfA, Iss

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MuPAD Combinat, an open source algebraic combinatorics package