Past Events

This event will be a special iteration of the Western Canada Linear Algebra Meeting (WCLAM) to honour Peter Lancaster at 95. There is a large and thriving Linear Algebra community in Western Canada, where there is ongoing research in matrix analysis...

Over the past few years, operator learning – the approximation of mappings between infinite dimensional function spaces using ideas from machine learning – has attracted increased research attention. Approximate operators, learned from data, hold...

Optimal transport operates on empirical distributions which may contain acquisition artifacts, such as outliers or noise, thereby hindering a robust calculation of the OT map. Additionally, it necessitates equal mass between the two distributions...

In this talk, we consider colored permutation groups ℤm≀Sn, which contain the symmetric groups Sn≅ℤ1≀Sn and the signed symmetric groups Bn≅ℤ2≀Sn as special cases. Like in Sn, colored permutations in ℤm≀Sn have a notion of cycle type that classifies...

We will consider the inverse problem of determining the sound speed or index of refraction of a medium by measuring the travel times of waves going through the medium. This problem arises in global seismology in an attempt to determine the inner...

Given a prime power q≡1(mod4), the Paley graph of order q is the graph defined over 𝔽q (the finite field with q elements), such that two vertices are adjacent if and only if their difference is a square in 𝔽q. A clique in the Paley graph over 𝔽q is a...

Reaction-diffusion systems serve as paradigms to describe ubiquitous pattern formation phenomena arising from natural science and social science such as biology, ecology, finance,etc., and have been extensively studied over the past several decades...

A sign pattern (matrix) has entries in {+, -, 0}. We investigate eigenvalue properties of a sign pattern of order 2n where two of the blocks are prescribed sign patterns of order n, and the other two (order n) blocks are the positive diagonal sign...

The annual Changing the Culture Conference, organized and sponsored by the Pacific Institute for the Mathematical Sciences, brings together mathematicians, mathematics educators and school teachers from all levels to work together towards narrowing...

For fixed n, consider the symmetric group S_n on the symbols 1,...,n and the set of *star* transpositions, the transpositions that contain the symbol n. A *star factorization* of a permutation b in S_n of length k is the writing of b as the product...