Seminar on graph complexes, GRT action on forms and formality for chains

Title: Seminar on graph complexes, GRT action on forms and formality for chains

Summary: Reading seminar on T. Willwacher's The Grothendieck-Teichmüller group action on differential forms and formality morphism of chains (arXiv:1308.6097). Makoto Yamashita talks on the stable formality (Dolgushev) and the formulation of main theorems.