FUNCTION: LieTools/AltTensor
USAGE: AltTensor(n,hfw,Gt); AltTensor(n,hfw); AltTensor(n,Gtype,rnk);
SYNOPSIS: AltTensor(n,hfw,Gt) computes the decomposition into
  irreducible finite dimensional representations of Gt of an
  n-fold totally anti-symmetric tensor product of a representation
  with highest weight hfw (hfw should be expressed in terms of a basis of 
  fundamental weights). 
EXAMPLE: 
> x := LieTools[AltTensor](3,[0,1],G2);

      x := XX[4, 0] + XX[0, 2] + XX[3, 0] + XX[2, 0] + XX[0, 0]

> 
REMARK: AltTensor may also be called in the form AltTensor(n,hfw,Gtype,rnk),
  or, if a global Lie algebra has been established, in the form AltTensor(n,hfw).

SEE ALSO:  LieTools[TensorProduct], LieTools[SymTensor], LieTools[MixedTensor]
