## EVENT DETAILS AND ABSTRACT

**Dynamical Systems Seminar**
**Title:** Degree of mobility and its applications: Lie Problem, Beltrami Problem and Schouten Problem

**Speaker:** Professor Vladimir Matveev

**Speaker Info:** Friedrich-Schiller-Universität Jena

**Brief Description:**

**Special Note**:

**Abstract:**

All these problems are different versions of the following
question: Can two different metrics have the same geodesics?
During my talk I will explain the solution of the Lie
Problem (which is the infinitesimal version of the question above; this is
a joint result with R. Bryant and G. Manno), of the Beltrami Problem
(which is presicely the question above, my contribution is to solve it on
closed manifolds, the first most important steps were done together with
P.Topalov), and of the Lichnerowicz-Obata conjecture (which
suggests an answer to Schouten problem, which is an infinitesimal
global version of the question above).

**Date:** Tuesday, February 27, 2007

**Time:** 3:00pm

**Where:** Lunt 107

**Contact Person:** Prof. Bryna Kra

**Contact email:** kra@math.northwestern.edu

**Contact Phone:** 847-491-5567

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