An L-A pair for the Apel'rot system and a new integrable case for the Euler-Poisson equations on so(4)xso(4)

1999/11/30 by Vladimir Dragovic, Borislav Gajic
Physics and Astronomy · Mathematics · #math-ph #math.MP #math.SG #msc:58F05

paper · pdf

published as Roy. Soc. of Edinburgh: Proc A, 131, 2001, 845-855 · 14 pages

arxiv created 1999/11/30 · arxiv updated 2009/11/30

Abstract

We present an L-A pair for the Apel'rot case of a heavy rigid 3-dimensional body. Using it we give an algebro-geometric integration procedure. Generalizing this L-A pair, we obtain a new completely integrable case of the Euler-Poisson equations in dimension four. Explicit formulae for integrals which are in involution are given. This system is a counterexample to one well known Ratiu's theorem. Corrected version of this classification theorem is proved.

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