Communications in Mathematical Physics

, Volume 120, Issue 2, pp 269–294

The connection whose holonomy is the classical adiabatic angles of Hannay and Berry and its generalization to the non-integrable case

  • R. Montgomery

DOI: 10.1007/BF01217966

Cite this article as:
Montgomery, R. Commun.Math. Phys. (1988) 120: 269. doi:10.1007/BF01217966


We show how averaging defines an Ehresmann connection whose holonomy is the classical adiabatic angles which Hannay defined for families of completely integrable systems. The averaging formula we obtain for the connection only requires that the family of Hamiltonians has a continuous symmetry group. This allows us to extend the notion of the Hannay angles to families of non-integrable systems with symmetry. We state three geometric axioms satisfied by the connection. These axioms uniquely determine the connection, thus enabling us to find new formulas for the connection and its curvature. Two examples are given.

Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • R. Montgomery
    • 1
  1. 1.M.S.R.I.BerkeleyUSA