"Non UBC"@en . "DSpace"@en . "Berenstein, Arkady"@en . "2016-03-29T05:04:55Z"@* . "2015-09-08T13:31"@en . "https://circle.library.ubc.ca/rest/handle/2429/57359?expand=metadata"@en . "49 minutes"@en . "video/mp4"@en . ""@en . "Author affiliation: University of Oregon"@en . "10.14288/1.0300088"@en . "eng"@en . "Unreviewed"@en . "Vancouver : University of British Columbia Library"@en . "Banff International Research Station for Mathematical Innovation and Discovery"@en . "Attribution-NonCommercial-NoDerivatives 4.0 International"@en . "http://creativecommons.org/licenses/by-nc-nd/4.0/"@en . "Faculty"@en . "BIRS Workshop Lecture Videos (Banff, Alta)"@en . "Mathematics"@en . "Associative rings and algebras"@en . "Category theory; homological algebra"@en . "Algebraic structures"@en . "H-cross products"@en . "Moving Image"@en . "http://hdl.handle.net/2429/57359"@en .