# Past Events

### Youssef Marzouk

MITOn low-dimensional structure in transport and inference

September 6, 2024

ESB 2012 and Zoom

ransportation of measure underlies many powerful, contemporary tools for Bayesian inference, density estimation, and generative modeling. The essential idea is to couple the target probability distribution with a simple, tractable ``reference'' distribution, and to use this coupling (which may... Read more

### Sayan Das

University of ChicagoLarge Deviation Principle for the Directed Landscape

September 4, 2024

The directed landscape is a random directed metric on the plane that arises as the scaling limit of classical metric models in the KPZ universality class. In this talk, we will discuss a functional large deviation principle (LDP) for the entire random metric. Applying the contraction principle,... Read more

- Probability

### Luca Nenna

Université of Paris-SaclayThe Ground State Energy is not Always Convex in the Number of Electrons

August 20, 2024

ESB 4133

By using Grand Canonical Optimal Transport we provide a counter-example showing that the ground state energy of electrons in an external Coulomb potential is not always a convex function of the number of electrons. This property has been conjectured to hold for decades and it plays an important... Read more

- Mathematical Physics
- Probability

### Paul Tsopméné

UBCOVery Detailed Workbooks in Calculus and Matrix Algebra

August 1, 2024

UBC

Problem-solving stands as the primary method for mastering calculus and matrix algebra. As students work through problem solutions, they often encounter several challenges. Some may struggle to grasp the connection between the theory and the solution, while others may find solutions unclear due... Read more

- Mathematics education

### Bernd Simeon

RPTU Kaiserslautern-Landau, GermanyCoupled analysis of active biological processes for meniscus tissue regeneration

July 31, 2024

ESB 4133

The starting point for this are clinical studies showing that partial and total meniscectomies lead to prevalence of premature osteoarthritis in knee joints. Accordingly, substantial efforts are being made towards finding adequate regenerative tissue for meniscus replacement. The presentation... Read more

- Mathematical Biology

Mini Conference on Symbolic Dynamics

July 24, 2024 to July 26, 2024

UBC

The Mini Conference on Symbolic Dynamics at UBC will focus on current topics of interest in symbolic dynamics. Read more

### Gang Zhou

Binghamton UniversityThe ETH approach of quantum measurement

June 27, 2024

ESB 4133

I will report the progress we made on the ETH approach for quantum measurements. Here E stands for Events, T stands for Trees and H for histories. I will start with presenting some basics of quantum mechanics, for example, the probabilistic nature of quantum mechanics and the importance of... Read more

- Differential geometry
- Mathematical Physics
- Partial Differential Equations

### Neda Abasi

Chaos in One Dimensional Piecewise Smooth Dynamical Systems

June 10, 2024

ESB 4133

We study the family of one dimensional piecewise smooth dynamical systems in which two classic theorems are still permanent. One of them is Birkhoff Transitivity Theorem and the other one is Banks, Brooks, Cairns, Davis and Stacey Theorem. Baker like maps with N-branches ( N>2 ) constitute an... Read more

### Gang Tian

Peking University/BICMRRicci flow on Fano manifolds

May 28, 2024

PIMS Lounge

In this talk, I will discuss a long-standing problem on type II singularity of Ricc flow. First I recall some known results on long-time behavior of Ricci flow, then I will present our solution to the above problem. I may also discuss a related problem concerning clasification of Fano manifolds... Read more

- Differential geometry
- Mathematical Physics
- Partial Differential Equations

### Jayadev Athreya

University of WashingtonApollonian Circle Packings: A Radicant Story

May 28, 2024

Math Annex

We'll talk about a piece of mathematics bringing together number theory (Ivan Niven's subject), geometry, and dynamical systems, that exemplify many of the things I love about math - community, diversity, collaboration, beautiful images, and an ongoing story of discovery. Lots of pictures! Read more