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Explore a mathematical lecture that delves into recent collaborative research examining bounded cohomology of diffeomorphism groups, revealing unexpected differences from ordinary cohomology and demonstrating how unbounded characteristic classes emerge. Learn how ergodic theory concepts contribute to proving cohomological results, presented during the "Foliations and Diffeomorphism Groups" thematic meeting at the Centre International de Rencontres Mathématiques in Marseille, France. Navigate through the presentation using chapter markers and keywords, access enriched content including abstracts and bibliographies, and utilize the multi-criteria search functionality to explore related mathematical concepts in CIRM's comprehensive Audiovisual Mathematics Library.
