correct_cgc_tensors() [2/2]

template<Rank r>

void syten::correct_cgc_tensors	(	Tensor< r > &	in,
		bool	recursive = false,
		SourceLocation	loc = SourceLocation::current()
	)

Corrects the CGC space by reconstructing it from a fusion tree.

This function iteratively merges legs of the tensor together until it is reduced to a rank-2 tensor. The rank-2 tensor has a well-defined CGC space proportional to the identity matrix. The elements of the CGC block are equalised and the tensor legs un-merged until the original tensor is obtained.

Parameters

in	[in,out] Tensor to be corrected. Needs to have at least one incoming leg and one outgoing leg.
recursive	Set to true on recursive calls from within the function
loc	Callsite identifier

References syten::Tensor< rank >::b(), std::vector< T >::begin(), syten::Tensor< rank >::clear(), correct_cgc_tensors(), syten::Tensor< rank >::dirs, std::vector< T >::end(), syten::Basis::f(), gME(), syten::Tensor< rank >::hasCGC(), Inc, insertIOFullHalf(), logGW(), Out, std::vector< T >::push_back(), syten::Tensor< rank >::size(), std::vector< T >::size(), std::sort(), and SYTEN_ASSERT_MSG.

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