Events

I will give a tour of the origins of Heegaard Floer homology and its applications in topology and representation theory, highlighting recent work that relates Heegaard Floer homology with a tensor product operation for higher representations as well as with new geometric constructions. https://sites.google.com/usc.edu/manion/home

Cardiovascular diseases are a major health and economic concern both in the U.S. and worldwide. Although recent breakthroughs in medical treatments for heart diseases have improved patient outcomes, the complex interplay between many interconnected physical phenomena has been a major obstacle in understanding the physiology of the heart and integrating it in mathematical models. By…

Topological and geometric data analysis (TGDA) is a powerful framework for quantitative description and simplification of datasets' shapes. It is especially suitable for modern biological data that are intrinsically complex and high-dimensional. Traditional topological data analysis considers the geometric features of a dataset, while in practice, there could be both geometric and non-geometric features. In…

At its most basic, algebraic geometry studies algebraic varieties; that is, the solution sets of systems of polynomial equations. In this talk our focus is on developing a concrete understanding of the geometry and topology of varieties and using this understanding to obtain practical and effective computational methods. Such methods may then in turn be…

A virtual property of a 3-manifold is a property satisfied by a finite cover of the 3-manifold. The study of such properties has been at the heart of several major developments in 3-manifold topology in the past decade. In this talk I will provide motivation and background on these virtual properties and discuss some recent results. Zoom…

Optimization is a broad area with ramifications in many disciplines, including machine learning, control theory, signal processing, robotics, computer vision, power systems, and quantum information. I will talk about some novel algorithmic and theoretical results in two broad classes of optimization problems. The first class of problems are semidefinite programs (SDP). I will present the…

Schubert calculus has its origins in enumerative questions asked by the geometers of the 19th century, such as "how many lines meet four fixed lines in three-space?"  These problems can be recast as questions about the structure of cohomology rings of geometric spaces such as flag varieties.  Borel's isomorphism identifies the cohomology of the complete…