Explore a one-hour conference talk by Hélène Eynard-Bontemps on "Connectedness and deformation by conjugation of actions on [0,1] (or $^1)" recorded during the thematic meeting "Big Mapping Class Group and Diffeomorphism Groups" at the Centre International de Rencontres Mathématiques in Marseille, France. Delve into advanced mathematical concepts related to mapping class groups and diffeomorphism groups. Access this video and other talks by renowned mathematicians through CIRM's Audiovisual Mathematics Library, featuring chapter markers, keywords, enriched content with abstracts and bibliographies, and a multi-criteria search function for easy navigation and exploration of mathematical topics.