productDecomp()

std::vector< std::pair< Rep, SparseTensor< 3, CDef > > > syten::RepRegister::Decomp::productDecomp	(	Rep const &	a,
		Rep const &	b,
		Ordinal const &	resultIndex = Ordinal::Third
	)

Decomposes the product representation and returns a list of pairs of irreps with the associated CGC spaces.

Parameters

a	first rep in the product
b	second rep in the product
resultIndex	index of the product irrep in the CGC space, i.e. if resultIndex = Ordinal::Second, the cgc space has indices corresponding to [a, result, b].

Returns

a vector of pairs containing an irrep and its CGC space

References syten::Rep::ferm, syten::Rep::group, syten::Rep::phys, and SYTEN_ASSERT_MSG.

Referenced by syten::ProjectedPurification::complementary(), syten::genFuse(), syten::genIINode(), syten::genRandom(), and syten::genReps().

Here is the caller graph for this function: