Seminar Algebra & Geometrie

    The "Seminar Algebra & Geometrie" takes place every Friday from 10.30 to 12.00 in the "Kleiner Hörsaal" (Mathematisches Institut, Rheinsprung 21).
    For questions please contact Pierre-Marie Poloni or Stéphane Vénéreau.

    Autumn Semester 2010

      September 24: Hamid Ahmadinezhad, Universität Basel
      On rigidity of low degree del Pezzo fibrations (abstract)

      September 29 (Wednesday), from 14.00 to 15.30, at the Alte Universität (room 118):
      Frédéric Mangolte, Université d'Angers
      Algebraic approximations of diffeomorphisms of surfaces (abstract)

      October 8: No Talk (Workshop "Automorphisms of Affine Spaces", Lyon)

      October 15: Émilie Dufresne, Universität Basel
      Additive group actions in positive chracteristic (abstract)

      October 22: Alvaro Liendo, Universität Basel
      Normal singularities with torus actions (abstract)

      October 29: Markus Brodmann, Universität Zürich
      Projective Varieties of Low Degree (abstract)

      November 5: Stéphane Lamy, University of Warwick / Université Lyon 1
      Birational constructions of automorphisms of affine 3-folds (abstract)

      November 12: Claudia R. Alcantara, Universidad de Guanajuato, Mexico
      Holomorphic foliations on CP2 and Geometric Invariant Theory (abstract)

      November 19: Gavin Brown, Loughborough University
      Gorenstein projections and diptych varieties (abstract)

      November 26: No Talk (Dies Academicus)

      December 3: Alexandru Constantinescu, Universität Basel
      Parametrizations of Ideals in K[x,y] (abstract)

      December 10: Martin Kohls, Technische Universität München
      Separating invariants for the basic $G_a$-actions (abstract)

      December 17: Bruno Benedetti, Technische Universität Berlin
      Shelling, constructing, counting (abstract)

    Spring Semester 2011

      February 25: Jérôme Tambour, Université de Bourgogne
      LVMB manifolds and triangulations of spheres (abstract)

      March 4: Nathan Ilten, Max Planck Institute
      Upgrades and Downgrades of p-divisors (abstract)

      March 11: Marc Chardin, Institut Mathématique de Jussieu, Paris
      Torsion in the symmetric algebra and images of rational maps (abstract)

      March 18: No Talk (Fasnachts-Woche)

      March 25: CANCELLED

      April 1: Lucas Fresse, Hebrew University of Jerusalem
      On some geometric properties of orbital varieties (abstract)

      April 8: Enrico Schlesinger, Politecnico di Milano
      On the problem of connectedness for the Hilbert schemes of space curves (abstract)

      April 15: Abraham Broer, Université de Montréal
      Cohomology of line bundles on the cotangent bundle of a complete homogeneous space

      April 22: No Talk (Osterferien)

      April 29: Matteo Varbaro, University of Genova
      T.B.A.

      May 6: Andreas Maurischat, Universität Heidelberg
      Galois groups for inseparable field extensions (abstract)

      May 13: Ivan Arzhantsev, Moscow State University and Institut Fourier
      Factorial algebraic group actions and categorical quotients (abstract)

      May 16 (Monday), from 16.00 to 17.00: Aldo Conca, University of Genova
      Koszul algebras and their syzygies (abstract)

      May 20: Émilie Dufresne, Universität Basel
      Finite separating sets and quasi-affine quotients (abstract)

      May 27: Olivier Serman, Université Lille 1
      Singularities of moduli spaces of principal bundles on curves (abstract)

       


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