Scalar product of two operators, e.g. \( G \cdot F \) is dot(f, g, vacuum)
, \( G \) will be taken to lie in the dual space in the process.
The result is mapped onto the specified quantum number sector sec
. See also MPS::dot() for more details.
References dot_rec(), syten::BTT::Operator::drop_unmatched(), syten::BinaryTree::Tree< T >::r, and syten::BinaryTree::Tree< Tensor< 5 > >::r.
Referenced by dot(), and syten::BTT::ParseOperator::dotqF().