Topological Algebraic Geometry Workshop
Oslo, September 4th-8th, 2006

The Strategic University Program in Pure Mathematics (Suprema) at the Department of Mathematics, University of Oslo, invites to a Workshop on Derived Algebraic Geometry, from Monday September 4th to Friday September 8th, 2006. The lectures will take place in seminar room B 1036, on the 10th floor of the N. H. Abel building.

(Also known as the Derived Algebraic Geometry Workshop. "Topological", as suggested by Haynes Miller, is in line with "topological Hochschild (co-)homology" and "topological André-Quillen (co-)homology", indicating the use of the sphere spectrum as the base ring. Other names are "brave new algebraic geometry", "homotopical algebraic geometry" and "spectral algebraic geometry".)

This will be the conclusion of a Masterclass by Jacob Lurie, on Derived Algebraic Geometry and Elliptic Cohomology. The theme of the workshop will be more broadly defined, including the point of view on structured ring spectra as rings of functions on new geometries.

Speakers and titles:

• Jacob Lurie (Harvard, multiple talks)
• Andy Baker (Glasgow): "Quasi-symmetric functions and quasi-Witt vectors"
• Clark Barwick (Göttingen/Oslo): "Crystals and D-crystals in spectral algebraic geometry"
• David J. Gepner (Sheffield): "Homotopy theory of orbispaces"
• Jens Hornbostel (Regensburg): "Beta elements and divided congruences"
• Gerd Laures (Bochum): "Chiral L-theory"
• Andrey Lazarev (Bristol): "Topological conformal field theories and homotopy algebras"
• Elke Markert (Bonn): "Connective Euclidean field theories"
• Niko Naumann (Regensburg): "The stack of formal groups in stable homotopy"
• Douglas C. Ravenel (Rochester): "Spectra associated with Artin-Schreier curves"
• Birgit Richter (Hamburg): "Exploiting a topological model of quasi-symmetric functions"
• Markus Spitzweck (Göttingen): "Statements and conjectures in derived Tannakian duality"
• Neil Strickland (Sheffield): "Étale extensions"

Here are links to abstracts and to some practical information.

Schedule:

Participants: Nils A. Baas (Trondheim), Haakon Schad Bergsaker (Oslo), Bjørn I. Dundas (Bergen), Thomas Gregersen (Oslo), Idar Hansen (Trondheim), Kathryn Hess (EPFL), Bjørn Jahren (Oslo), Michael Joachim (Münster), Finn Faye Knudsen (Trondheim), Johannes Kuhr (Bochum), Haynes Miller (MIT), Justin Noel (Chicago), Paul Arne Østvær (Oslo), Kristian Ranestad (Oslo), John Rognes (Oslo), Constanze Roitzheim (Bonn), Fridolin Roth (Hamburg), Steffen Sagave (Bonn/Oslo), Christian Schlichtkrull (Bergen), Johann Sigurdsson (Sheffield), Arne B. Sletsjøe (Oslo) and Samuel Wüthrich (Sheffield).

The standard accomodation is at:

• Hotel Gyldenløve, Bogstadveien 20, 0355 Oslo, phone (+47) 23 33 23 00, email gyldenlove@thonhotels.no

• take Flybussekspressen (Airport Coaches) line F1 from Oslo Lufthavn to Majorstuen, and walk 10 minutes southeast along Bogstadveien to the hotel, or
• take flytoget (the Airport Express Train) to Oslo S (the central train station), walk to the T-bane (= metro) stop "Jernbanetorget", take any metro going west to the stop "Majorstuen", and then walk 10 minutes southeast along Bogstadveien to the hotel.

• walk back to Majorstuen, and then 10-15 minutes more northeast to the Blindern campus, or
• walk back to Majorstuen, and then take metro line 3, 4 or 5 one stop to "Blindern", which is 3 minutes away from campus.