SAMEER JALNAPURKAR
California Institute of Technology
MSC 609
Pasadena, CA 91126-0609, USA
http://www.cds.caltech.edu/~smj
smj@cds.caltech.edu
Abstract:
We will show how, given a discrete mechanical system
defined by a discrete Lagrangian $L:Q\times Q\to \mathbb{R}$
that is invariant under the action of a group $G$,
one can obtain a discrete flow on the symplectically
reduced space $\mathbf{J}^{-1}(\mu)/G_\mu$.