Explore a 59-minute conference talk by Angélica M. Osorno on "(2)-categorical constructions and multiplicative equivariant Barratt" presented at the Centre International de Rencontres Mathématiques in Marseille, France. Delve into advanced mathematical concepts as part of the thematic meeting "Chromatic Homotopy, K-Theory and Functors" held on January 26, 2023. 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 comprehensive learning.