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DTSTART;TZID=UTC:20250212T153000
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UID:7937-1739374200-1739377800@aarms.math.ca
SUMMARY:Atlantic Graph Theory Seminar
DESCRIPTION:Time: 3:30 pm\, Atlantic time\, (4:00 pm NST) Wednesday\, Feb. 12\nSpeaker: Robert Bailey\, Memorial University\nTitle: Computer constructions of distance-regular graphs with primitive automorphism groups\n\nAbstract:\nA graph is distance-regular if\, for each vertex $v$ and each vertex $w$ at distance $i$ from $v$\, the number of neighbours of $w$ at distances $i-1$\, $i$ or $i+1$ from $v$ depends only on $i$\, and not on the choice of $v$ or $w$.  These are highly-structured graphs with interesting structural and algebraic properties.  Many of the well-known examples have large symmetry groups.\n\nThe GAP computer algebra system contains libraries of primitive permutation groups (i.e. those which preserve no interesting equivalence relations).  With the assistance of my undergraduate research students\, I have been analyzing these libraries with the ultimate aim of classifying the distance-regular graphs with such groups as automorphism groups.  In this talk\, I will discuss the status of this work\, a few surprises which came up along the way\, and some (theoretical and computational) questions which remain open.\n \nZoom link:\nhttps://us02web.zoom.us/j/86861499971?pwd=rTDAaju0TCu24asnaBGvkuNlT11KZ1.1\n\nMeeting ID: 868 6149 9971\nPasscode: 325258
URL:https://aarms.math.ca/event/atlantic-graph-theory-seminar-26/
LOCATION:Online via Zoom
CATEGORIES:AARMS Atlantic Graph Theory Seminar
ORGANIZER;CN="jeannette%20Janssen":MAILTO:jeannette.janssen@dal.ca
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