Breakup process and geometrical structure of high-dimensional KAM tori

Satoru Kurosaki*, Yoji Aizawa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The breakup of KAM tori in four-dimensional symplectic maps is studied. KAM tori are constructed explicitly by conjugation theory, and the successive steps leading to their breakup is analytically determined for two cases in which rotation vectors are cubic and quadratic. The present paper is motivated by the observation of Boltt and Meiss (Physica D66(1993), 282), but our result differs significantly from their conjecture, because it suggests that the rational approximation does not work in cases with many degrees of freedom. The succession to the breakup depends on the perturbations which determine the dominant type of small divisors in the conjugation function.

Original languageEnglish
Pages (from-to)783-793
Number of pages11
JournalProgress of Theoretical Physics
Issue number4
Publication statusPublished - 1997 Oct

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Breakup process and geometrical structure of high-dimensional KAM tori'. Together they form a unique fingerprint.

Cite this