# PIMS Network Wide Colloquium

## Upcoming Events

Scientific, Colloquia

PIMS Network Wide Colloquium: Pamela Harris

Finding and enumerating Boolean intervals in $W(\mathfrak{S}_n)$, the weak order of symmetric group $\mathfrak{S}_n$, can feel like trying to find needles in a haystack. However, through surprising connection to the outcome map of parking functions...

Scientific, Colloquia

PIMS Network Wide Colloquium: Amie Wilkinson

TBA

Scientific, Colloquia

PIMS Network Wide Colloquium: Jordan Ellenberg

TBA

Scientific, Colloquia

PIMS Network Wide Colloquium: Mariel Vazquez

TBA

## Past Events

Scientific, Colloquia

PIMS Network Wide Colloquium: Sheehan Olver

When particles interact with attractive-repulsive dynamics, which can model birds flocking, space dust, or a variety of other phenomena, they tend to form a nice distribution. Understanding these distributions is an active area of applied analysis...

Scientific, Colloquia

PIMS Network Wide Colloquium: Terence Tao

For centuries, mathematicians have relied on computers to perform calculations, to suggest conjectures, and as components of mathematical proofs. In the light of more modern tools such as interactive theorem provers, machine learning algorithms, and...

Scientific, Seminar

PIMS Network Wide Colloquium: Sarah Koch

We will introduce the research area of complex dynamics by studying the family of (complex) quadratic polynomials, $z->z^2+c$. Historically, mathematicians first studied the dynamics of {\em real} quadratic polynomials and then moved to the complex...

Scientific, Colloquia

PIMS Network Wide Colloquium: Wilfrid Gangbo

We consider metric tensors on undirected weighted graphs G, which allows us to treat P(G), the set of probability vectors on G, as a length space. On defines a divergence operator div_\mu(G) for mu in P(G), in such a way that we can use control...

Scientific, Seminar

PIMS Network Wide Colloquium: Kristin Lauter

Learning with Errors (LWE) is a hard math problem with algebraic structure, underpinning many proposed Post-Quantum Cryptosystems (PQC). The only PQC key exchange standardized by NIST is based on module LWE, and current publicly available PQC...

Scientific, Seminar

PIMS Network Wide Colloquium: Ravi Vakil

Eulerâ€™s famous formula tells us that (with appropriate caveats), a map on the sphere with f countries (faces), e borders (edges), and v border-ends (vertices) will satisfy v-e+f=2. And more generally, for a map on a surface with g holes, v-e+f=2-2g...

Scientific, Distinguished Lecture

PIMS Network Wide Colloquium: Alessio Figalli

The classical obstacle problem consists of finding the equilibrium position of an elastic membrane whose boundary is held fixed and which is constrained to lie above a given obstacle. By classical results of Caffarelli, the free boundary is smooth...

Scientific, Colloquia

PIMS Network Wide Colloquium: Helen Byrne

The past twenty-five years have heralded an unparalleled increase in understanding of cancer. At the same time, mathematical modelling has emerged as a natural tool for unravelling the complex processes that contribute to the initiation and...

Scientific, Colloquia

PIMS Network Wide Colloquium: Weinan E

Modern machine learning has had remarkable success in all kinds of AI applications, and is also poised to change fundamentally the way we do research in traditional areas of science and engineering. In this talk, I will give an overview of some of...

Scientific, Distinguished Lecture

PIMS Network Wide Colloquium: Bryna Kra

Resolving a conjecture of Erdos and Turan from the 1930's, in the 1970's Szemeredi showed that a set of integers with positive upper density contains arbitrarily long arithmetic progressions. Soon thereafter, Furstenberg used Ergodic Theory to gave a...