TYP::IshA --
tests whether the argument is a product of generators of the
h-basis on a formal alphabet expression
Call(s)
TYP::IshA(expr)
Parametersexpr | - | any expression |
Introduction
The TYP::IshA function tests whether expr is a product of generators of
the e-basis on a formal alphabet expression, that is a product of complete
symmetric functions 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::IshA( h[](A1-A2) );
TRUE
>> muEC::TYP::IshA( h[3,3,1](k/3*A3) );
TRUE
Related FunctionsIseA, IsmA, IspA, IssA, SfA, Ish
MuPAD Combinat, an open source algebraic combinatorics package