"Non UBC"@en . "DSpace"@en . "Gluck, Herman"@en . "2014-08-06T23:54:39Z"@en . "2013-08-06"@en . "I will discuss the new result of Haomin Wen, a graduate student at Penn, that group multiplication on the three-sphere is a Lipschitz constant minimizer in its homotopy class, unique up to composition with isometries of domain and range. The proof is based on some insightful new geometric inequalities.\\r\\n\\r\\nIn the talk I will provide the background for Haomin\u00E2\u0080\u0099s result, and will end with a list of problems that point the way to future work."@en . "https://circle.library.ubc.ca/rest/handle/2429/49424?expand=metadata"@en . "41 minutes"@en . "video/mp4"@en . ""@en . "Author affiliation: University of Pennsylvania"@en . "10.14288/1.0043478"@en . "eng"@en . "Unreviewed"@en . "Vancouver : University of British Columbia Library"@en . "Banff International Research Station for Mathematical Innovation and Discovery"@en . "Attribution-NonCommercial-NoDerivs 2.5 Canada"@en . "http://creativecommons.org/licenses/by-nc-nd/2.5/ca/"@en . "Researcher"@en . "BIRS Workshop Lecture Videos (Banff, Alta)"@en . "Mathematics"@en . "Differential geometry"@en . "Manifolds and cell complexes"@en . "Lipschitz minimality of group multiplication on the three-sphere"@en . "Moving Image"@en . "http://hdl.handle.net/2429/49424"@en .