Past Events

The fall meeting of Oregon Number Theory Days will take place on Saturday, October 2 at Portland State University. This is a triannual seminar rotating between Oregon State University, Portland State University, and the University of Oregon...

The theory of optimal transport (OT) gives rise to distance measures between probability distributions that take the geometry of the underlying space into account. OT is often used in the analysis of point cloud data, for example in domain adaptation...

Active matter systems, ranging from liquid crystals to populations of cells and animals, exhibit complex collective behavior characterized by pattern formation and dynamic phase transitions. However, quantitative classification is challenging for...

The theory of optimal transport (OT) gives rise to distance measures between probability distributions that take the geometry of the underlying space into account. OT is often used in the analysis of point cloud data, for example in domain adaptation...

Richard Guy's book "Unsolved Problems in Number Theory" was one of the first mathematical books I owned. I will discuss a selection of my favorite problems from the book, together with some of the progress that has been made on them in the 30 years...

One of the challenges of the accurate simulation of turbulent flows is that initial data is often incomplete. Data assimilation circumvents this issue by continually incorporating the observed data into the model. A new approach to data assimilation...

In pursuit-evasion games, a set of pursuers attempts to locate, eliminate, or contain an evader in a network. The rules, specified from the outset, greatly determine the difficulty of the questions posed above. For example, the evader may be visible...

In this joint work with X. Zhou, we exhibit the first examples of non-generic metrics on the three sphere in which the varifold associated with a two-parameter min-max construction must be a multiplicity two minimal surface. This is proved by a new...

Closely motivated by financial considerations, we develop an integration theory which is not classical i.e. it is not necessarily associated with a measure. The base space, denoted by $\mathcal{S}$ and called a trajectory space, substitutes the set $...

Abstract: Skeletal muscle structure and the changes that occur in diseased muscle tissue cross several physical length scales. Diseased muscle tissue often has alterations on the microscopic level to individual contractile components inside the...