Variational principle for discrete 2d integrable systems

Add to your list(s) Download to your calendar using vCal

• Lobb, S (University of Sydney)
• Wednesday 10 July 2013, 10:00-10:30
• Seminar Room 1, Newton Institute.

If you have a question about this talk, please contact Mustapha Amrani.

Discrete Integrable Systems

For multidimensionally consistent systems we can consider the Lagrangian as a form, closed on the multidimensional equations of motion. For 2-d systems this allows us to define an action on a surface embedded in higher dimensions. It is then natural to propose that the system should be derived from a variational principle which includes not only variations with respect to the dependent variables, but also variations of the surface in the space of independent variables. I will describe how this puts constraints on the Lagrangian, and how this leads to equations on a single quad in the lattice.

This talk is part of the Isaac Newton Institute Seminar Series series.

This talk is included in these lists:

• All CMS events
• Featured lists
• INI info aggregator
• Isaac Newton Institute Seminar Series
• School of Physical Sciences
• Seminar Room 1, Newton Institute
• bld31

Note that ex-directory lists are not shown.