For any integer we introduce a complex spanned by genus ribbon quivers with marked boundaries and prove that its cohomology computes (up to a degree shift) the compactly supported cohomology of the moduli space of genus algebraic curves with marked points. We show that the totality of complexes has a natural dg Lie algebra structure which controls the deformation theory of the dg properad governing a certain class of (possibly, infinite-dimensional) degree pre-Calabi-Yau algebras. This result implies, in particular, that for the zero-th cohomology group of the derivation complex is one-dimensional (i.e. has no homotopy non-trivial automorphisms except rescalings), while for the cohomology group contains a subspace isomorphic to the Grothendieck-Teichmüller Lie algebra.

生成讲解博客的中文版本

生成AI智能校验的中文版本