@prefix vivo: . @prefix edm: . @prefix dcterms: . @prefix dc: . @prefix skos: . @prefix ns0: . vivo:departmentOrSchool "Non UBC"@en ; edm:dataProvider "DSpace"@en ; dcterms:creator "Harper, Scott"@en ; dcterms:issued "2019-03-20T02:01:24Z"@en, "2018-09-20T11:32"@en ; dcterms:description "The distinguishing number of a permutation group $G \\leq \\Sym(X)$ is the smallest number of colours required to colour the points of $X$ such that only the identity of $G$ preserves the colouring. The distinguishing number of a graph, in the traditional sense, is simply the distinguishing number of its automorphism group. Seress proved that every primitive group of degree $n$ other than $\\Alt(n)$ and $\\Sym(n)$ has distinguishing number 2, except for a short list of known examples (with distinguishing number 3 or 4). In this talk, I will overview previous work on the distinguishing number of groups, before discussing recent joint work with Alice Devillers and Luke Morgan on the distinguishing number of semiprimitive groups. I will highlight the application of our result to graphs."@en ; edm:aggregatedCHO "https://circle.library.ubc.ca/rest/handle/2429/68956?expand=metadata"@en ; dcterms:extent "30.0"@en ; dc:format "video/mp4"@en ; skos:note ""@en, "Author affiliation: University of Bristol"@en ; edm:isShownAt "10.14288/1.0377186"@en ; dcterms:language "eng"@en ; ns0:peerReviewStatus "Unreviewed"@en ; edm:provider "Vancouver : University of British Columbia Library"@en ; dcterms:publisher "Banff International Research Station for Mathematical Innovation and Discovery"@en ; dcterms:rights "Attribution-NonCommercial-NoDerivatives 4.0 International"@en ; ns0:rightsURI "http://creativecommons.org/licenses/by-nc-nd/4.0/"@en ; ns0:scholarLevel "Graduate"@en ; dcterms:isPartOf "BIRS Workshop Lecture Videos (Oaxaca de Juárez (Mexico))"@en ; dcterms:subject "Mathematics"@en, "Combinatorics"@en, "Group theory and generalizations"@en, "Discrete mathematics"@en ; dcterms:title "The distinguishing number of semiprimitive groups"@en ; dcterms:type "Moving Image"@en ; ns0:identifierURI "http://hdl.handle.net/2429/68956"@en .