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February 2024

Atlantic Graph Theory Seminar

February 6, 2024 @ 3:30 pm - 4:30 pm
Online via Zoom

Zoom link below. Live viewing for local participants in Chase 227 (tea-drinkers are encouraged to bring their own mug). Speaker: Evelyn Smith-Roberge, Georgia Tech Title:Correspondence Packings of Planar Graphs Abstract: Suppose a graph G has list chromatic number k. It is easy to see that if L is a (k+1)-list assignment for G, then G admits two L-colourings f and g where f(v) =/= g(v) for every vertex v in the graph. But what if we want still more disjoint…

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Atlantic Graph Theory Seminar

February 14, 2024 @ 3:30 pm - 4:30 pm
Online via Zoom

Speaker: Andrew Beveridge, Macalester College Title: Approval Ballot Triangles Time: Wednesday, February 14, 3.30pm Atlantic time Live viewing for local participants in Chase 227, Dalhousie University Bertrand's Ballot Problem enumerates the number of ways to count ballots so that candidate 1 never trails candidate 2. We generalize this problem by considering an approval ballot election between $n$ candidates. In an approval ballot election, each voter endorses a subset of candidates, rather than voting for just one person. The general approval…

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Atlantic Graph Theory Seminar

February 21, 2024 @ 3:30 pm - 4:30 pm
Online via Zoom

Speaker: Ada Chan, York University Title: Polygamy in state transferAbstract:Let $X$ be a graph and $H$ be a Hermitian matrix associated with $X$.   The continuous-time quantum walk with Hamiltonian $H$ isdefined by the time-dependent unitary matrix\begin{equation*}U(t)=e^{i t H}.\end{equation*}Perfect state transfer occurs from vertex $a$ to vertex $b$ at time $\tau$ is $\vert U(\tau)_{b,a}\vert = 1$.   This phenomenon is relevant for information transmission in a quantum spin network.   For real and symmetric Hamiltonians, it is known that perfect state transfer can…

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AARMS Seminar: EDI in STEM with Dr. Lisa Willis

February 22, 2024 @ 2:00 pm - 5:00 pm

While EDI has become an often referred to issue in academia and society, it remains a challenging topic to discuss, especially for people in STEM fields. Fear of making a mistake or not knowing what to say results in people disengaging from the conversation. Additionally, the multitude of initiatives and obligations in the EDI space, few of which seem to be making a real difference, is leading to EDI fatigue. In this talk, we will discuss how we as imperfect…

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Girls STEM Up

February 24, 2024
Delta Hotels by Mariott Fredericton, 225 Woodstock Rd
Fredericton, New Brunswick Canada
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Established in 2019, Girls STEM Up (GSU) has grown into a vibrant community of over members advocating for diversity, inclusion, and equity in STEM. Focused on changing perceptions, GSU hosts an annual conference spotlighting women's accomplishments in STEM. The event serves as a transformative platform for networking and knowledge exchange, fueling the passion of young women pursuing STEM careers. The upcoming GSU: Bridging the Gap conference in February 2024 promises to be a pivotal experience. Beyond the conference, GSU remains…

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Atlantic Graph Theory Seminar

February 28, 2024 @ 3:30 pm - 4:30 pm
Online via Zoom

Pursuit-evasion on Graphs Trent Marbach, Toronto Metropolitan University The study of pursuit-evasion on graphs looks at games played between two adversaries, with one player tasked with alluding capture from the other on the graph. We will describe these types of games in general, although we will take a particular focus on two games: the Cops and Robber game, and the Localization game. A famous open conjecture for the Cops and Robber game has spurred recent work in the area, and…

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2024 Integration Competition

February 29, 2024
Saint Francis Xavier University, 4130 University Avenue
Antigonish, Nova Scotia B2G 2W5 Canada

The Integration Competition (held 4 times in the past at this university, funded by AARMS), is a head-to-head competition, in which all first-year calculus students are eligible to compete. Integrals of increasing difficulty are projected, and two students work head to head, to solve it first. The winner moves on, and the other student is eliminated. This process moves through successive rounds until only 2 students are left, solving a challenging problem in integration. This generates excitement about mathematics among…

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March 2024

Acadia Math Buffet

March 4, 2024
Acadia University Wolfville, Nova Scotia Canada + Google Map

Acadia's Math Buffets are a chance for students in grades 9- 12 in Hants, Kings and Annapolis counties to explore new and interactive topics in mathematics. In these 2-hour sessions, students will learn about a variety of math topics, such as networks, Google page rank, cryptography, problem solving and how to win at darts.

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Atlantic Graph Theory Seminar

March 6, 2024 @ 3:30 pm - 4:30 pm
Online via Zoom

Induced subgraphs and treewidth Speaker: Sophie Spirkl, University of Waterloo Abstract: Treewidth is a measure of the complexity of a graph and has both structural and algorithmic consequences. While results of Robertson and Seymour characterize which minors appear in graphs of large treewidth, the same question is still open for induced subgraphs. I will present some recent results towards an answer to this question, in particular, about when excluding a finite set of induced subgraphs leads to the answer being…

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Integration Tournament for UPEI students

March 14, 2024
University of Prince Edward Island Charlottetown, Prince Edward Island Canada + Google Map

Integration Tournament and Pi day event for UPEI Undergraduate Students.

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