Quantum Mechanics for Mathematicians
《Quantum Mechanics for Mathematicians》 · 第 214—215 页 · Section 6.5.1
The chain complex \(B\mathcal P=(\mathcal T^c(s\overline{\mathcal P}),d_2)\) is a conilpotent differential graded cooperad called the bar construction of the augmented operad \(\mathcal P\).