
Long Chen
Thu Oct 18, 2018
12:00 pm
Prof. Chen will pose a problem in the analysis of a randomized algorithm for LU factorization: https://arxiv.org/abs/1605.02353. The answer will likely use some probability tools.

Alex Mramor
Tue Oct 16, 2018
4:00 pm
In this talk we will discuss the mean curvature flow with surgery and how to extend it to the low entropy, mean convex setting. An application to the topology of low entropy self shrinkers will also be discussed. This is a joint work with Shengwen Wang.

Paata Ivanisvili
Tue Oct 16, 2018
3:00 pm
In 2006 Carbery raised a question about an improvement on the naïve norm inequality
(f+g_p)^p ≤ 2^(p1)((f_p)^p + (g_p)^p) for two functions in Lp of any measure space. When f=g this is an equality, but when the supports of f and g are disjoint the factor 2^(p1) is...

Louis Komzsik
Mon Oct 15, 2018
4:00 pm
Engineering topology optimization is a technique to minimize the mass of a structure while maintaining or even increasing its robustness in certain lifecycle applications. The presentation will show the technical foundation based on the finite element method with an embedded gradient based mathematical optimizer. Characteristic...

Mon Oct 15, 2018
4:00 pm
Lei Chen (Caltech): Section problems
In this talk, I will discuss a direction of study in topology: Section problems. There are many variations of the problem: Nielsen realization problems, sections of a surface bundle, sections of a bundle with special property (e.g. nowhere zero vector field). I will discuss some techniques including homology,...

Alec Fox
Mon Oct 15, 2018
4:00 pm
This is the second in a series of lectures on naive descriptive set theory based on an expository paper by Matt Foreman. The topics discussed will include tree representations, universality properties of Polish spaces, and subspaces of Polish spaces.

Chris Davis
Fri Oct 12, 2018
4:00 pm
We'll talk about grading strategies both for course graders (readers) and also for TAs who want to write quizzes that can be graded more efficiently.