Department of MathematicsUsing the Lorentzian length of closed geodesics (Margulis's alpha invariant), we will discuss isospectral Lorentzian (2 + 1)-manifolds. We will also extend the invariant to elements whose linear part is parabolic.
Thursday, April 26, 2001 - 4:30pm
Swarthmore College
Using the Lorentzian length of closed geodesics (Margulis's alpha invariant), we will discuss isospectral Lorentzian (2 + 1)-manifolds. We will also extend the invariant to elements whose linear part is parabolic.