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DTSTART;TZID=UTC:20210210T153000
DTEND;TZID=UTC:20210210T163000
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CREATED:20201006T115021Z
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SUMMARY:Atlantic Graph Theory Seminar: Dr Anthony Bonato\, Ryerson University
DESCRIPTION:The localization game played on graph\nGraph searching investigates combinatorial models for the detection or neutralization of an adversary’s activity on a network. One such model is the localization game\, where pursuers use distance probes to capture an invisible evader. We present new results on the localization number of a graph\, which is the minimum number of pursuers needed to capture the evader. We survey what is known and unknown for the localization number\, discuss connections with the chromatic number\, and give bounds on graph families such as hypercubes\, incidence graphs of combinatorial designs\, and Kneser graphs. \nThe Atlantic Graph Theory Seminar series will take place every Wednesday from 3:30-4:30 ADT online via zoom. The talks\, provided by researchers\, postdocs and graduate students\, will be on a variety of current topics in graph theory. If you would like to give a talk or attend\, please email one of the organizers (Jason Brown and Danielle Cox).
URL:https://aarms.math.ca/event/atlantic-graph-theory-seminar-2021-02-10/
LOCATION:Zoom seminar
CATEGORIES:Atlantic Graph Theory Seminar
ORGANIZER;CN="Jason Brown":MAILTO:jason.brown@dal.ca
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DTSTART;TZID=UTC:20210224T153000
DTEND;TZID=UTC:20210224T163000
DTSTAMP:20210224T014431Z
CREATED:20201006T115021Z
LAST-MODIFIED:20210224T014431Z
UID:5734-1614180600-1614184200@aarms.math.ca
SUMMARY:Atlantic Graph Theory Seminar: Dr. Gary Gordon\, Lafayette College
DESCRIPTION:Permutations of finite subsets of R^2 generated by Euclidean distances\nGiven a finite set of points S = {P1\, P2\, . . . \, Pn} and a vantage point V\, generate an ordering of the points of S by measuring the Euclidean distance from V to each of the points of S\, ordering them from nearest to farthest. As the vantage point moves around the plane\, different orderings will be generated. We are interested in the maximum\, minimum\, and intermediate values achievable for different point-sets S. (Good and Tideman solved the maximum problem in all dimensions in the 1970s.) We also consider a generalization that uses two vantage points\, using the average distance (d(V1\, Pk) + d(V2\, Pk))/2 to the points of S to generate an ordering. \nThe Atlantic Graph Theory Seminar series will take place every Wednesday from 3:30-4:30 ADT online via zoom. The talks\, provided by researchers\, postdocs and graduate students\, will be on a variety of current topics in graph theory. If you would like to give a talk or attend\, please email one of the organizers (Jason Brown and Danielle Cox).
URL:https://aarms.math.ca/event/atlantic-graph-theory-seminar-2021-02-24/
LOCATION:Zoom seminar
CATEGORIES:Atlantic Graph Theory Seminar
ORGANIZER;CN="Jason Brown":MAILTO:jason.brown@dal.ca
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