sfa := 7/5*s[2,2](2*A3) + s[3,1](A2)*p[2](A2) - q*e[2,1](A2);
muEC::SFA::SfA2Sf( sfa );
muEC::SFA::SfA2Sf( sfa, [ A2, A3 ] );
muEC::SFA::SfA2Sf( sfa, [ A2, 2*A3 ] );
muEC::SFA::SfA2Sf – from SFA objects to SYMF objects
Call:
muEC::SFA::SfA2Sf(sf, <alist>)
Parameters:
|
sf: |
any valid expression in muEC::SYMF |
|
alist: |
a list of alphabets |
Related Functions:
muEC::SFA::Sf2SfA, muEC::TYP::Sf, muEC::TYP::SfA
Details:
The muEC::SFA::SfA2Sf function transforms any symmetric function of the muEC::SYMF package into an object of muEC::SFA for a given list of alphabets (by default all alphabets).
Valid bases for symmetric functions are e, h, p, s, m.
Allowed alphabet expressions are linear combinations of formal alphabets A1, A2, A3, ..., for instance 3/2*A1 - A3 + 3/4 is valid.
The inverse function is Sf2SfA.
sfa := 7/5*s[2,2](2*A3) + s[3,1](A2)*p[2](A2) - q*e[2,1](A2);
muEC::SFA::SfA2Sf( sfa );
muEC::SFA::SfA2Sf( sfa, [ A2, A3 ] );
muEC::SFA::SfA2Sf( sfa, [ A2, 2*A3 ] );