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Article
The Group of Hamiltonian Homeomorphisms in the L∞-Norm
Journal of the Korean Mathematical Society (2008)
  • Stefan Müller, Korea Institute for Advanced Study
Abstract
The group Hameo(M,ω) of Hamiltonian homeomorphisms of a connected symplectic manifold (M,ω) was defined and studied in [7] and further in [6]. In these papers, the authors consistently used the L(1,∞)-Hofer norm (and not the L-Hofer norm) on the space of Hamiltonian paths (see below for the definitions). A justification for this choice was given in [7]. In this article we study the L-case. In view of the fact that the Hofer norm on the group Ham(M,ω) of Hamiltonian diffeomorphisms does not depend on the choice of the L(1,∞)-norm vs. the L-norm [9], Y.-G. Oh and D. McDuff (private communications) asked whether the two notions of Hamiltonian homeomorphisms arising from the different norms coincide. We will give an affirmative answer to this question in this paper.
Keywords
  • Hamiltonian Homeomorphisms,
  • Mathematics,
  • Homeomorphisms,
  • L∞-Hofer norm,
  • Hamiltonian topology
Disciplines
Publication Date
November, 2008
Publisher Statement
Copyright © 2008 Korean Mathematical Society. The Journal of the Korean Mathematical Society is an open access journal licensed under the Creative Commons BY-NC license.
Citation Information
Stefan Müller. "The Group of Hamiltonian Homeomorphisms in the L∞-Norm" Journal of the Korean Mathematical Society Vol. 45 Iss. 6 (2008) p. 1769 - 1784 ISSN: 2234-3008
Available at: http://works.bepress.com/stefan-muller/7/