Integrable systems : spectral curves and representation theory

Abstract EN

The aim of this paper is to present an overview of the active area via the spectral linearization method for solving integrable systems.

New examples of integrable systems, which have been discovered, are based on the so called Lax representation of the equations of motion.

Through the Adler-Kostant-Symes construction, however, we can produce Hamiltonian systems on coadjoint orbits in the dual space to a Lie algebra whose equations of motion take the Lax form.

We outline an algebraic-geometric interpretation of the ows of these systems, which are shown to describe linear motion on a complex torus.

These methods are exempli ed by several problems of integrable systems of relevance in mathematical physics.