Homepage
Organizing Cmte.
Advisory Committee
Plenary speakers
Special Sessions
  		• knot theory and quantum topology
  		•  3-manifolds
  		• 4-manifolds
  		• Geometric group theory and related topics
  		• Fixed point theory
    Abstracts (pdf)
    Schedule
    Accommodation
    Transportation
    Registration Form
    Confirmation
    List of Participants
    Passport and Visa
    Useful Links
  		• Map of China
  		• ICM 2002
  		• About Xi'an
  		• Qujiang Hotel

    Homological estimates for the Thurston norm

    Vladimir Turaev
    ( Click here for pdf version )

    We establish a new homological lower bound for the Thurston norm on the 1-cohomology of a 3-manifold. This generalizes previous results of C. McMullen and S. Harvey.