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November 2024

University of New Brunswick Data Challenge 2024

November 29, 2024
University of New Brunswick (Fredericton Campus) Fredericton, New Brunswick Canada + Google Map

The UNB Data Challenge 2024 will be the 9th iteration of the nationwide competition on Nov. 29, 2024, in a virtual format. Take up the challenge and demonstrate the power of data. Participants and teams will be able to showcase their ability to tell a story driven by data in unique competitive formats. It is an ideal setting for citizens to get engaged, meet leaders in academia, government, and private organizations, and explore the world of data science.

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December 2024

AARMS Doctoral Thesis Award Winner Seminar

December 19, 2024 @ 1:30 pm - 2:30 pm
Online via Zoom

A tangent category approach to operadic geometry Marcello Lanfranchi December 19, 2024 @ 1:30pm Abstract: A tangent category consists of a collection of abstract objects equipped with a structure, called a tangent structure, which makes those abstract objects into locally linear geometric spaces. In my thesis, I introduced and studied a list of geometric theories from the perspective of tangent category theory. In particular, I showed that each (opposite) category of algebras, such as associative, commutative, or Lie algebras, comes equipped with a tangent structure…

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January 2025

Atlantic Graph Theory Seminar

January 15, 2025 @ 3:30 pm - 4:30 pm
Online via Zoom

Speakers: Prangya Parida, U. Ottawa, and Kiara McDonald, U. Victoria Zoom link:  https://us02web.zoom.us/j/86415230827?pwd=QUxLUnlMdWYzL05zSUJ4bnBCOUJnZz09 --------------------------------------------------- Prangya Parida: Title: Cover-free families on graphs Abstract: A family of subsets of a t-set is called a d-cover-free family if no subset is contained in the union of any d other subsets. We denote by t(d, n) the minimum  t for which there exists a d-cover-free family of a t-set with n subsets. Cover-free families (CFF) have wide applications in combinatorial group testing, where a d-CFF(t, n) can be…

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Atlantic Graph Theory Seminar

January 22, 2025 @ 3:30 pm - 4:30 pm
Online via Zoom

Ramsey numbers of signed graphs Ben Seamone, Dawson College and Université de Montréal Abstract: Nathan Acheampong (Université de Montréal) Francis Clavette (Université de Montréal) Geˇna Hahn (Université de Montréal) Margaux Marseloo (Université Paris-Saclay) Viktor Paardekooper (Université de Montréal), and Ben Seamone* (Dawson College & Université de Montréal) A signed graph is a pair (G, σ) where G = (V,E) is a graph and σ : E(G) → {+, −} is a signature which assigns a sign to each edge of G. One well-studied operation on…

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Combinatorial Algebra meets Algebraic Combinatorics 22nd annual workshop

January 24, 2025 - January 26, 2025
York University, 4700 Keele Street
Toronto, Ontario M3J 1P3 Canada
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The Combinatorial Algebra meets Algebraic Combinatorics (CAAC) workshop is an annual meeting taking place in Canada since 2004, with a focus on the continuously evolving interactions between combinatorial algebra and algebraic combinatorics. These meetings provide a strong connection between the two communities and help with the development of these fields. Historically, the CAAC meetings provided opportunities for graduate students, postdoctoral fellows, and early career researchers to present their work, learn about new research directions in related fields, and establish future…

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Atlantic Graph Theory Seminar

January 29, 2025 @ 3:30 pm - 4:30 pm
Online via Zoom

Switching m-edge coloured graphs Speaker: Gary MacGillivray, University of Victoria Abstract: An m-edge-coloured graph consists of a set of vertices, any two of which are either joined by an edge of one of m colours or not joined at all. The operation of switching at a vertex v of an m-edge-coloured graph with respect to an element of a subgroup \Gamma of S_m  permutes the colours of the edges incident with v.  Switching defines an equivalence relation on the set…

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CRG Seminar: Modelling Fish Stock Biomass Dynamics in a Multi-gear Fishery and Determining the Stock Status

January 31, 2025 @ 12:00 pm - 1:00 pm
online via webex

Abstract: A marine fishery is an important sector in many countries as it contributes towards the nutritional requirements of people and provides income and employment to the associated population. Compared to other natural resources fish being a living resource has the capacity for rebuilding through reproduction. Sustainable management of the marine fishery resources is very important to avoid resource depletion as well as collapse. Biomass of individual species needs to be estimated and its dynamics have to be studied regularly…

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February 2025

Atlantic Graph Theory Seminar

February 5, 2025 @ 3:30 pm - 4:30 pm
Online via Zoom

Kemeny's constant for Markov chains and random walks on graphs Speaker: Jane Breen, Ontario Tech University Kemeny's constant is an interesting and useful quantifier of how well-connected the states of a Markov chain are. Though it was first introduced in the 1960s, interest in this concept has recently exploded. This talk will provide an introduction to Markov chains, an overview of the history of Kemeny’s constant, discussion of some applications, and a survey of recent results, with an emphasis on…

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Atlantic Graph Theory Seminar

February 12, 2025 @ 3:30 pm - 4:30 pm
Online via Zoom

Time: 3:30 pm, Atlantic time, (4:00 pm NST) Wednesday, Feb. 12 Speaker: Robert Bailey, Memorial University Title: Computer constructions of distance-regular graphs with primitive automorphism groups Abstract: A 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…

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Girls STEM Up Conference 2025: connect and Conquer

February 15, 2025
Delta Hotels by Mariott Fredericton, 225 Woodstock Rd
Fredericton, New Brunswick Canada

Girls STEM Up is collectively 28 women students based in Fredericton, NB, who are passionate about bridging the gap of gender inequity in STEM fields, focusing on intersectionality. Founded in 2019, with the goal of sparking necessary discussions and changing the perception of women in STEM. We have since expanded to include 60+ general members, high school ambassadors, and volunteers. Our experiences as underrepresented individuals in STEM have brought us together to promote diversity, inclusion, and equity in these fields…

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