How can we deform a given Lie algebra? In particular, in the attachment file how can we arrive at the commutation relations (20) by starting from the commutation relation (19)?
Hi,
I want to know how can we arrive at the generators of Lie algebra if we have killing equation ?
on the other words, In this attached image I want to know how can I arrive at communication relation (16) by starting from killing vector (14) and its constraint...