Explore a 42-minute conference talk by Nikolai Nikolski on the Schatten class of Sobolev embeddings and the oscillation speed of an L^2 basis. Recorded during the thematic meeting "Shapes and shades of analysis: in depth and beyond" at the Centre International de Rencontres Mathématiques in Marseille, France. Delve into advanced mathematical concepts and their applications. 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.