## Fall 2014 Mathematics Calendar

Mary Lou Zeeman presents: "Harnessing Math to Understand Tipping Points and Resilience"

September 10,
2014
12:00 PM
– 1:00 PM

Moulton Union, Main Lounge

FACULTY SEMINAR SERIES**Mary Lou Zeeman**, R. Wells Johnson Professor of Mathematics is the featured speaker. The title of her talk is:

**"Harnessing Math to Understand Tipping Points and Resilience."**Open to faculty and staff.

Buffet lunch $3, or bring your own lunch.

Fermat's Last Theorem

September 22,
2014
8:00 PM
– 9:00 PM

Searles Science Building, Room 315

This lecture centers on the solution of Fermat's Last Theorem, a mathematical assertion from the 17th century that was established by modern methods twenty years ago after resisting the efforts of professional and amateur mathematicians for 350 years. It will explain the formulation of the problem and recapitulate the history leading up to the announcement of a solution by Andrew Wiles in 1993 and the final step of the proof by Richard Taylor and Andrew Wiles in 1994. Some of the new mathematical ideas used in the proof will be summarized at the end of the lecture.

Ken Ribet will present the Cecil T. and Marion C. Holmes Mathematics Lecture sponsored by the Mathematics Department.

Ribet is a member of the editorial boards of several book series and research journals. He was elected to the American Academy of Arts and Sciences in 1997 and the National Academy of Sciences in 2000. He was awarded the Fermat Prize in 1989 and received an honorary PhD from Brown University in 1998. Ribet was inducted as a Vigneron d'honneur by the Jurade de Saint Emilion in 1988. He received his department's Distinguished Teaching Award in 1985.

Dynamical Models of Locomotion

October 3,
2014
12:30 PM
– 1:30 PM

Searles Science Building, Room 315

Dynamical systems theory uses normal forms as simple models for empirical observations. This lecture focuses upon stable limit cycles as models of animal locomotion. Utilizing motion capture data of running cockroaches and people and flying fruit flies and mosquitoes, we test the anchors and templates hypotheses formulated by Full and collaborators. These hypotheses propose that animals have evolved so that their motion resembles a low dimensional dynamical system, and that control is based upon a small number of quantities. This lecture will introduce these hypotheses and reformulate them as a statement about the motion of a dynamical system near a periodic orbit. It will then describe the strategy we developed to analyze motion capture data from this perspective. We end with new questions about stochastic perturbations and data driven models of dynamical systems.

John Guckenheimer, Abram R. Bullis Professor in Mathematics, Cornell University, will present the Dan E. Christie Mathematics Lecture. Lecture is sponsored by the Mathematics Department and Digital and Computational Studies.

John Guckenheimer started his career in pure mathematics, and is now one of the leaders of applied dynamical systems. Last year, he and co-author Phil Holmes were awarded the AMS Leroy P. Steele Prize for Mathematical Exposition for their 1983 book, Nonlinear Oscillations, Dynamical Systems, and Bifurcations of Vector Fields (Springer-Verlag). John is a fellow of the American Academy of Arts and Sciences, the American Association for Advancement of Science, the American Mathematical Society, and the Society for Industrial and Applied Mathematics, where he served as president in 1997-98. His research encompasses mathematical biology, systems with multiple time scales, and computational algorithms.

This lecture integrates mathematics, biology, and digital and computational ways of thinking.

Jack O'Brien presents: "Measuring Mixtures of Malaria: Statistics in the Battle Against Humanity's Greatest Plague"

October 7,
2014
12:00 PM
– 1:00 PM

Moulton Union, Main Lounge

FACULTY SEMINAR SERIES**John (Jack) D. O'Brien**, Assistant Professor of Mathematics is the featured speaker. The title of his talk is: "

**Measuring Mixtures of Malaria: Statistics in the Battle Against Humanity's Greatest Plague."**Open to faculty and staff.

Buffet lunch $3, or bring your own lunch.