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Du 2 au 3 mars 2015

IRMA

The workshop "Spherical and hyperbolic geometry" will take place at Institut de Recherche Mathématique Avancée (University of Strasbourg and CNRS) on March 2-3, 2015.

Organizers : A. Papadopoulos and D. Slutskiy (Strasbourg)

Each speaker will present a classical result in non-Euclidean (spherical and/or hyperbolic) geometry together with modern ramifications.

The invited speakers include :

  • N. A'Campo (Basel)
  • V. Alberge (Strasbourg)
  • N. Bergeron (Jussieu)
  • C. Boubel (Strasbourg)
  • S. Dumitrescu (Nice)
  • B. Ettaoui (Mulhouse)
  • F. Fillastre (Cergy)
  • E. Frenkel (Strasbourg)
  • S. L. Ho (Luxembourg)
  • A. Papadopoulos (Strasbourg)
  • D. Slutskiy (Strasbourg)
  • S. Yamada (Tokyo)

The talks will be in English and they are intended for a general audience. Graduate students and young mathematicians are welcome.

Registration is required (and free of charge) at this link. Hotel booking can be asked for through the registration link.

For practical matters and other questions please contact the organizers:

  • Lundi 2 mars 2015

  • 09:00

    Norbert A'campo, Bâle

    TBA

  • 10:00

    Pause

  • 10:30

    François Fillastre, Cergy

    Hyperbolic surfaces and 3d Lorentzian geometry

  • 11:30

    Dmitriy Slutskiy, Strasbourg

    De Tilly's mechanical view on hyperbolic geometry

  • 14:00

    Boumedienne Ettaoui, Mulhouse

    Hermitean trigonometry

  • 15:00

    Pause

  • 15:30

    Sumio Yamada, Sendai

    How to defrom a hyperbolic metric

  • 16:30

    Vincent Alberge, Strasbourg

    On comparisons between extremal length and hyperbolic length.

  • 19:45

    Dîner Au Restaurant Le Gruber

    (11 rue du Maroquin, quartier cathédrale) Tout le monde est invité

  • Mardi 3 mars 2015

  • 09:00

    Nicolas Bergeron, Paris 6

    Une variété hyperbolique qui fibre sur le cercle (et un théorème de Ian Agol et Dani Wise)

  • 10:00

    Pause

  • 10:30

    Son Lam Ho, Luxembourg

    Gauss-Bonnet theorem and geometries of surfaces

  • 11:30

    Elena Frenkel, Strasbourg

    Area formula for hyperbolic triangles

  • 14:00

    Athanase Papadopoulos, Strasbourg

    On some classical results in spherical geometry

  • 15:00

    Pause

  • 15:30

    Sorin Dumitrescu, Nice

    Conformal geometry and the topology of the diffeomorphism group of compact surfaces

  • 16:30

    Charles Boubel, Strasbourg

    Géométries riemannienne et pseudo-riemannienne : exemples de ressemblances et de différences