TYP::IshA
--
tests whether the argument is a product of generators of the
h-basis on a formal alphabet expression
TYP::IshA(expr)
expr | - | any expression |
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 A
i's are the only formal variables in alphabets.
>> muEC::TYP::IshA( h[](A1-A2) );
TRUE
>> muEC::TYP::IshA( h[3,3,1](k/3*A3) );
TRUE
IseA
, IsmA
, IspA
, IssA
, SfA
, Ish
MuPAD Combinat, an open source algebraic combinatorics package