Ergodic Theory Seminar – M. Lin (Ben-Gourion Univ.)
ZoomZoom link Uniform ergodicity of the one-sided ergodic Hilbert transform Abstract Ergodic Theory Seminar Website
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Applied Mathematics Colloquium – Thomas P. Witelski (Duke University)
Phillips Hall 332Coarsening dynamics of condensing fluid thin films Abstract: The behavior of thin layers of viscous fluids coating solid surfaces is of importance in many industrial and natural applications. Interfacial instabilities and pattern formation can occur in films on water-repellent surfaces. Thin … Read more
Applied Mathematics Colloquium – Boris Landa (Yale University)
Phillips Hall 247Title: Detection and recovery of low-rank signals under heteroskedastic noise Abstract: A fundamental task in data analysis is to detect and recover a low-rank signal in a noisy data matrix. Typically, this task is addressed by inspecting and manipulating the spectrum … Read more
Geometric Methods in Rep Theory Seminar – Jianqiao Xia (Harvard)
Phillips Hall 383Title: Equivalence of Hecke Categories with Deeper Level Structures Abstract: Inspired by the theory of positive depth representations of p-adic reductive groups, we study Hecke categories associated to certain open compact subgroups smaller than the Iwahori subgroup. In this talk, … Read more
Online Undergraduate Research Seminar – Alex Ortiz and Paige Dote (MIT)
ZoomIncidences and projections: discrete and continuous Abstract. A number of difficult problems in geometric measure theory stem from discrete geometry results, such as Beck’s theorem about the number of lines spanned by a set of points in the plane, and … Read more
Ergodic Theory Seminar – G. Cohen (Ben-Gourion Univ.)
ZoomZoom link On the empirical process sampled along a stationary process Abstract Ergodic Theory Seminar Website
Applied Mathematics Colloquium – Tian Ma, Institute of Fluid Dynamics (Helmholtz-Zentrum Dresden–Rossendorf)
Phillips Hall 332Title-Bubble clusters and particle-pair dispersion in bubble-laden flows Abstract-Bubble clusters We use experiments to study the evolution of bubble clusters in a swarm of freely rising, deformable bubbles. A new machine learning-aided algorithm allows us to identify and track bubbles … Read more
Ergodic Theory Seminar – Yaofeng Su (Georgia Tech)
ZoomZoom link Some new results for open dynamical systems Abstract Ergodic Theory Seminar Website
M. E. Taylor Analysis and PDE Seminar – Peter McGrath (NCSU)
Phillips Hall 385Eigenvalue Optimization and Minimal Surfaces Abstract. I will discuss a new method, developed in collaboration with M. Karpukhin, R. Kusner, and D. Stern, for constructing minimal surfaces embedded in the 3-sphere and the 3-ball, by equivariant eigenvalue optimization. A main … Read more
Geometric Methods in Rep Theory Seminar – Luke Conners (UNC)
Phillips Hall 385Row-Column Mirror Symmetry for Colored Torus Knot Homology Abstract. The HOMFLYPT polynomial is a 2-variable link invariant generalizing the celebrated Jones polynomial and other Type A quantum link polynomials. Its construction passes through a Hecke algebra representation of the braid … Read more
Physically Inspired Mathematics Seminar – Marco Castronovo
Phillips Hall 383Curved Fukaya algebras and the Dubrovin spectrum Abstract: The cohomology ring of a compact symplectic manifold can be deformed by counting pseudo-holomorphic spheres. Fukaya-Oh-Ohta-Ono developed an obstruction theory that explains when Lagrangian submanifolds yield modules over such deformation, based on … Read more
Online Undergraduate Research Seminar – Prof. Kelly Bickel (Bucknell)
ZoomCrouzeix's Conjecture, Blaschke Products, and Numerical Ranges Abstract. Crouzeix’s Conjecture is an important open problem in operator theory that posits: for every square matrix A, the numerical range of A is a two spectral-set for A. In this talk, we’ll … Read more