# Events for March 21, 2018 from General and Seminar calendars

## Noncommutative Geometry Seminar

**Time:** 2:00PM - 2:50PM

**Location:** BLOC 628

**Speaker:** Hongzhi Liu , Texas A&M University and Shanghai Center of Mathematical Sci

**Title:** *Some notes on higher rho invariant*

**Abstract:**In this talk I would like to introduce the higher rho invariant as an obstruction class. I will then focus on its applications in topology and show how to define additive higher rho map from the structure group of a topological manifold to the K theory of a certain obstruction C*-algebra. At last I hope to talk about the product formula for higher rho invariants.

## First Year Graduate Student Seminar

**Time:** 5:30PM - 6:30PM

**Location:** BLOC 628

**Speaker:** Peter Howard

**Title:** *Jobs in the profession*

## AMUSE

**Time:** 6:00PM - 7:00PM

**Location:** BLOC 22

**Speaker:** Dr. Frank Sottile, Texas A&M University, Department of Mathematics

**Title:** *Some Algebraic Geometry in Applications*

**Abstract:**Algebraic geometry is the study of sets which arise as the common zeroes to a collection of polynomials. It is a deep and powerful subject, combining geometric intuition with algebraic precision. It is also increasingly a useful tool in applications of mathematics, for whenever polynomials arise, the methods of algebraic geometry may be brought to bear on the problem at hand. I will illustrate this growing trend through a series of interrelated examples of algebraic geometry arising in applications.