# People

## Faculty

### Jessica Sidman

Jessica Sidman works at the intersection of algebra, geometry, and computation. In particular, she is interested in applications of computational algebraic geometry, which is a fancy way of saying that she likes seeing how to use a computer to solve problems with polynomials. Her current research is focused on using algebraic methods to analyze systems of geometric constraints that arise in rigidity theory, a subject with many applications including robotics, protein folding, and computer-aided design.

### Timothy Chumley

Tim Chumley is a probabilist interested in working on models that arise in physics, engineering, and other areas. In the past, much his work has focused on Markov chain models which can be generically called random billiards. His work on probabilistic limit theorems for these models aims to provide a framework for detailed study of realistic physical models of phenomena in kinetic theory of gases and classical statistical mechanics. In addition, he is interested in random walks in random media, differential geometry, and stochastic processes on manifolds.

### Andrea Foulkes

### Carrie Hosman

### Alanna Hoyer-Leitzel

Alanna Hoyer-Leitzel does research in applications of dynamical systems. Her projects include classifying relative equilibria in the n-vortex problem (configurations of swirls in fluids that maintain their shape while translating and rotating) by looking at symmetry of their structures. Her more recent work applys the ideas of bifurcation, tipping, and disturbance to modeling resilience in climate and ecosystems. Alanna's other interests include bad scifi, cross stitching, taking pictures of her cats, and riot grrl punk music.

### Amir Kouzehkanani

### Sara Nuñez

### Mark Peterson

Mark Peterson is a physics theorist who teaches in both the physics and mathematics departments. His research includes modelling fluid dynamics in biophysical settings, innovative mathematical methods for elasticity theory, and the history of physics and mathematics, especially the life and work of Galileo.

### Margaret Robinson

Margaret Robinson is a number theorist whose work combines analysis, algebra, and topology to understand number theoretic objects, in particular zeta functions. For Robinson, the research is addictive because objects from other areas of mathematics arise like strange outcrops revealing unexpected constituents in the rock of number theory. Tracking down and explaining why these startling connections exist is tantalizing, sometimes frustrating, but never boring.

### Thomas Shelly

### Jordan Tirrell

## Emeriti

### George Cobb

### Alan Durfee

Alan Durfee specializes in topology and algebraic geometry.

### James Morrow

James Morrow specializes in Mathematics education.

### Harriet Pollatsek

Harriet Pollatsek specializes in finite groups and finite geometries, difference sets, and quantum error correction.

## Explore the MHC Social Universe >