Lagrangian multiforms on coadjoint orbits
- Anup Anand Singh
Event description
First introduced in 2009, Lagrangian multiforms provide a variational framework for describing integrable hierarchies using a generalised variational principle applied to an appropriate generalisation of a classical action. In this talk, I will give an overview of this framework and report some recent results based on joint works with V. Caudrelier, M. Dell’Atti, and B. Vicedo. In particular, I will explain how one can use the theory of Lie dialgebras to systematically construct Lagrangian multiforms living on coadjoint orbits for a large class of finite-dimensional integrable systems. Lie dialgebras are related to Lie bialgebras but are more flexible in that they incorporate the case of non-skew-symmetric r-matrices. After discussing some structural results for our multiforms, I will use the examples of the rational and the cyclotomic Gaudin models to illustrate the scope of our construction.
Lagrangian multiforms on coadjoint orbits
Venue
School of Physics and Astronomy
James Clerk Maxwell Building, 4305
Peter Guthrie Tait Road
Edinburgh
EH9 3FD
UK
Related events
This event is part of:
Organisers
- Subrabalan Murugesan(
- Heriot-Watt University
- Sam Teale(
- University of Edinburgh
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