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DTSTART;TZID=America/Halifax:20210203T103000
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CREATED:20200615T150024Z
LAST-MODIFIED:20210202T025813Z
UID:5747-1612348200-1612351800@aarms.math.ca
SUMMARY:AARMS COVID-19 Seminar: Sanjeev Seahra (UNB)
DESCRIPTION:COVID-19 modelling in New Brunswick and elsewhere\nWe present a simple differential equation based model of the COVID-19 pandemic that allows for time-evolving social distancing.  We apply the model to the first 80 days of the pandemic in 24 different jurisdictions to quantify the effectiveness of government lockdowns in March 2020.  Using Bayesian methods\, we then estimate model parameters relevant to the current outbreak in New Brunswick. \nThis is a virtual zoom seminar.  If you would like to attend\, please email the organizers for connection details.  All times are given in the Atlantic timezone.
URL:https://aarms.math.ca/event/aarms-covid-19-seminar-2021-02-03/
LOCATION:Zoom seminar
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BEGIN:VEVENT
DTSTART;TZID=UTC:20210210T153000
DTEND;TZID=UTC:20210210T163000
DTSTAMP:20260614T083114
CREATED:20201006T115021Z
LAST-MODIFIED:20210212T180031Z
UID:5732-1612971000-1612974600@aarms.math.ca
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=America/Halifax:20210217T103000
DTEND;TZID=America/Halifax:20210217T113000
DTSTAMP:20260614T083114
CREATED:20200615T150024Z
LAST-MODIFIED:20210212T194831Z
UID:5749-1613557800-1613561400@aarms.math.ca
SUMMARY:AARMS COVID-19 Seminar: JC Loredo-Osti (Memorial)
DESCRIPTION:Covid-19 management in Newfoundland and Labrador\nAtlantic Canada and the territories have experienced a qualitatively different COVID-19 epidemic than the other Canadian provinces. The question is\, do these differences suggest different best approaches to public health policy or they are just the consequence of geographic/demographic conditions? When infection prevalence is low\, imported infections are not only a large fraction of all infections\, but a major trigger of outbreaks. This also posses questions about the merits of travel restrictions as well as the escalation of measures in response to outbreaks. On this presentation\, we will discuss some of the ways to quantify these issues in the context of the pandemic in Atlantic Canada\, and in particular in Newfoundland and Labrador. \nThis is a virtual zoom seminar.  If you would like to attend\, please email the organizers for connection details.  All times are given in the Atlantic timezone.
URL:https://aarms.math.ca/event/aarms-covid-19-seminar-2021-02-17/
LOCATION:Zoom seminar
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DTSTART;TZID=America/Halifax:20210224T130000
DTEND;TZID=America/Halifax:20210224T140000
DTSTAMP:20260614T083114
CREATED:20200706T160843Z
LAST-MODIFIED:20210212T175656Z
UID:5781-1614171600-1614175200@aarms.math.ca
SUMMARY:Atlantic GR Seminar: Sarah Muth (MUN)
DESCRIPTION:Marginally Outer Trapped (Open) Surfaces in 4+1 Dimensional Schwarzschild\nIn the case of binary black hole mergers\, the surface of most obvious interest\, the Event Horizon\, is often computationally difficult to locate. Instead\, it is useful to turn to quasi-local characterizations of black hole boundaries\, such as Marginally Outer Trapped Surfaces (MOTS)\, which are defined for a single time slice of the spacetime\, and the outer-most of which is the apparent horizon. In this talk\, I will describe ongoing work focused on understanding MOTS in the interior of a five-dimensional Schwarzschild black hole. Similar to the four-dimensional case previously studied\, we find examples of self-intersecting MOTS with an arbitrary number of self-intersections. This provides further support that self-intersecting behavior is rather generic. I will also briefly discuss the next stage of our research\, which involves further examples of these self-intersecting MOTS\, this time in the full Kruskal extension of Schwarzschild. \nThe Atlantic General Relativity 2020 online postdoc/student seminar series is in the tradition of the annual AGR meetings\, providing a forum not only for students and postdocs to present their research and make professional contacts but also to facilitate connections and collaborations between all Atlantic Canadian relativists. The series is student-organized and includes all areas of classical and quantum gravity. Talks will occur on the last Wednesday of every month\, with each session consisting of two 30 minute talks. If you would like to attend\, please email the organizers for connection details. \nNote: all times are Atlantic Time
URL:https://aarms.math.ca/event/atlantic-gr-seminar-2021-02-24/
LOCATION:Zoom seminar
CATEGORIES:Atlantic GR Seminars
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BEGIN:VEVENT
DTSTART;TZID=UTC:20210224T153000
DTEND;TZID=UTC:20210224T163000
DTSTAMP:20260614T083114
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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