Lie groups, differential geometry, and nonlinear integrable systems

Author(s):  
A. V. Razumov ◽  
M. V. Saveliev
2013 ◽  
Vol 28 (03n04) ◽  
pp. 1340007
Author(s):  
A. MARSHAKOV

We propose an explicit construction for the integrable models on Poisson submanifolds of the Lie groups. The integrals of motion are computed in cluster variables via the Lax map. This generalized construction for the co-extended loop groups allows to formulate, in general terms, some new classes of integrable models.


Acta Numerica ◽  
2000 ◽  
Vol 9 ◽  
pp. 215-365 ◽  
Author(s):  
Arieh Iserles ◽  
Hans Z. Munthe-Kaas ◽  
Syvert P. Nørsett ◽  
Antonella Zanna

Many differential equations of practical interest evolve on Lie groups or on manifolds acted upon by Lie groups. The retention of Lie-group structure under discretization is often vital in the recovery of qualitatively correct geometry and dynamics and in the minimization of numerical error. Having introduced requisite elements of differential geometry, this paper surveys the novel theory of numerical integrators that respect Lie-group structure, highlighting theory, algorithmic issues and a number of applications.


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