**Emily Stone**

Email

# Colloquia

## January 11 – Dave Futer

## Dave Futer – Temple University

### Can you hear the shape of a 3-manifold?

In the 1960s, Marc Kac popularized the question, "Can you hear the shape of a drum?" In slightly more mathematical language, the question asks: "Can you determine the shape of a domain in the plane from the spectrum of frequencies at which it vibrates?" The study of this question has been extended to surfaces and manifolds of other dimensions.

We now know that the answer is usually "no." There exist planar domains (and surfaces, and 3-dimensional manifolds) that have the same spectrum but different shapes. However, essentially all known counterexamples are related by a rigid cut-and paste procedure called commensurability. I will explain how this works in the context of 3-dimensional manifolds, leading up to some recent joint work with Christian Millichap.

#### Friday, January 11, 2019 at 3:00 p.m. in Math 103

Refreshments at 4:00 p.m. in Math Lounge 109

## February 11 – Derek Williams

## Derek Williams – Montana State University

### Relationships Between Undergraduate Students' Engagement and Understanding

This presentation discusses results from a mixed methods study investigating student engagement, understanding of precalculus concepts, and associations between engagement, understanding, and instructional approaches as reported by community college precalculus students. Student- and classroom-level factors associated with precalculus students' engagement are identified, and task-based interviews reveal a relationship between affective and cognitive experiences. Implications for teaching, and the current/future directions of this research are shared.

#### Monday, February 11, 2019 at 3:00 p.m. in Math 103

Refreshments at 4:00 p.m. in Math Lounge 109

## February 25 – Charlie Katerba

## Charlie Katerba – Montana State University

#### Monday, February 25, 2019 at 3:00 p.m. in Math 103

Refreshments at 4:00 p.m. in Math Lounge 109

## March 4 – Ricela Feliciano-Semidei

## Ricela Feliciano-Semidei – University of Montana

#### Monday, March 4, 2019 at 3:00 p.m. in Math 103

Refreshments at 4:00 p.m. in Math Lounge 109

## March 11 – Makini Beck

## Makini Beck – Rochester Institute of Technology

#### Monday, March 11, 2019 at 3:00 p.m. in Math 103

Refreshments at 4:00 p.m. in Math Lounge 109

## March 18 – Leonard Huang

## Leonard Huang – University of Nevada

#### Monday, March 18, 2019 at 3:00 p.m. in Math 103

Refreshments at 4:00 p.m. in Math Lounge 109

## April 1 – Wend Werner

## Wend Werner – University of Muenster in Germany

#### Monday, April 1, 2019 at 3:00 p.m. in Math 103

Refreshments at 4:00 p.m. in Math Lounge 109

## April 8 – Tien Chih

## April 15 – Marta Civil

## Marta Civil – University of Arizona

#### Monday, April 15, 2019 at 3:00 p.m. in Math 103

Refreshments at 4:00 p.m. in Math Lounge 109

## April 18 – Department Awards Ceremony

## April 22 – Michelle Ghrist

## Michelle Ghrist – Gonzaga University

#### Monday, April 22, 2019 at 3:00 p.m. in Math 103

Refreshments at 4:00 p.m. in Math Lounge 109

### Available Dates

January 14, 28

February 4