# Differential geometry – Cohomology of the Lie groupoid

Given a grouopid lie $$mathcal {G} = ( mathcal {G} _1 rightrightarrows mathcal {G} _0)$$ I'm trying to understand what should be the groupoid cohomology of this Lie groupoid $$mathcal {G}$$".

Some notes deal with the cohomology of the Lie groupoid.

Given a group of lies $$G$$we can associate a Lie groupoid $$(G rightrightarrows *)$$.

Given a group of lies $$G$$, we have the notion of cohomology of the Lie group $$G$$.

Could this be used as a motivation to define cohoology of Lie groupoid $$(G rightrightarrows *)$$?