A Note on the Newman-Unti Group and the BMS Charge Algebra in Terms of Newman-Penrose Coefficients

Table 2

Rank and density weights.

	𝑃^−1𝜎^0	𝑃^−2𝜎̇^0	𝑃^−3Ψ^04	𝑃^−3Ψ^03	𝑃^−3Ψ^02	𝑃^−3Ψ^01	𝑌	𝑇
𝑠	2	2	−2	−1	0	1	−1	0
𝑛	−1/2	0	1/2	1	3/2	1	−1	−1/2