´óÏó´«Ã½

Spring

• February 4, Semi-Free Orthogonal Spectra and the Convenient Model Structure, Martin Stolz.
• January 28, Homotopy colimits, and how to calculate them, Martin Stolz.

Autumn

• November 12, Complete intersections and rational homotopy theory, Shoham Shamir.
• November 3, On the Classifying Space of Some Cobordism Categories, Marius Thaule.
• October 29, Classification and computation using homotopy cofinality, Frederik Nordström.
• October 27, Orientation of two vector bundles, Thomas Kragh.
• October 22, Introduction to spectral sequences, Bjørn Dundas.
• October 15, Nilpotence and Periodicity in Stable Homotopy Theory, Torleif Veen.
• October 8, Nilpotence and Periodicity in Stable Homotopy Theory, Martin Stolz.
• October 1, Smash Induction, Morten Brun.
• September 24, MU-theory and Formal Group Laws, Martin Stolz.
• September 17, Periodicity and stable homotopy groups, Torleif Veen.
• September 10, Periodicity and stable homotopy groups, Torleif Veen.
• September 3, Cancelled.
• August 27, at 14:15 in room 526, First meeting.
  Introduction to Periodicity and Nilpotence in stable homotopy theory, Torleif Veen.

Autumn

• November 11, An algebraic model for cohomology theories on free G-spaces, John Greenlees (Sheffield).
• November 4, Homotopy invariant notions of complete intersections for rings and spaces, John Greenlees (Sheffield).
• October 14, Smash powers of commutative Orthogonal Ring Spectra II, Martin Stolz.
• October 7, Half a magnetic monopole, Bjørn Ian Dundas.
• September 30, Smash powers of commutative Orthogonal Ring Spectra, Martin Stolz.
• September 23, Determinants for bipermutative categories, Torleif Veen.
• September 9, Higher topological Hochschild homology of Thom spectra, Christian Schlichtkrull.
• September 2, A proposal for a program to prove the red shift conjecture, Bjørn Ian Dundas.
• August 26, First meeting

Spring

• June 10, Algebraic cobordism and algebraic K-theory as localized group-ring spectra, David Gepner (Sheffield).
• June 9, S-algebras, filtrations, differentials and hidden extensions, Bob Bruner (Wayne State University), Monday 13:15-15:00(?).
• May 20, No seminar, see program for the Topology symposium.
• May 15, Topological automorphic forms, Tyler Lawson (University of Minnesota), Thursday 10:15-12:00, 534.
• May 14, Topological automorphic forms, Tyler Lawson (University of Minnesota), Wednesday 10:15-12:00, 534.
• May 13, Topological automorphic forms, Tyler Lawson (University of Minnesota).
• May 6, Unitary Spectra, Martin Stolz (Bonn).
• April 22, On homotopy principles, Lukas Vokrinek (Brno) (more seminars announced locally).
• April 7, Topological cyclic homology of l/p, John Rognes (Oslo). Monday: 14.15 - 16.00.
• March 31, Topological cyclic homology of l, John Rognes (Oslo). Monday: 14.15 - 16.00.
• March 3, Topological cyclic homology of Z, John Rognes (Oslo). Monday: 14.15 - 16.00.
• February 26, Rognes' Galois theory III, Morten Brun.
• February 25, Topological cyclic homology of Z/p, John Rognes (Oslo). Monday: 14.15 - 16.00. 
• February 19, Rognes' Galois theory II, Christian Schlichtkrull.
• February 12, No seminar.
• February 5, Om de Rham Witt komplekset, Christian Schlichtkrull.
• January 29, The topological Singer construction and fixpoints of THH, Sverre Lunøe-Nilsen (Oslo).
• January 22, Rognes' Galois theory, an informal/inadequate introduction, Bjorn Ian Dundas.
• January 10, deRham cohomology for E∞-algebras, Randy McCarthy (UIUC), 10:15 in room 534.

Autumn

• December 14, 10:15-12, D-crystals, Clark Barwick.
• December 13, 10:15-12, Cohomological calculations of fixed points, Marcel Bokstedt.
• November 22, 10:15-12:00, Covering homology wrt. free actions on the 3-sphere, Bjorn Ian Dundas.
• November 6, 12:15-14:00, Equivariant multilinearity II, Morten Brun.
• October 30, 12:15-13:00, Witt vectors and endomorphisms of modules, Morten Brun.
• October 26, 12:15-14:00, Thom spectra and rectification, Christian Schlichtkrull.
• October 9, 12:15-14:00, Two-vector bundles III, Bjorn Ian Dundas.
• October 2, 12:15-14:00, Two-vector bundles II, Bjorn Ian Dundas.
• September 25, 12:15-14:00, Two-vector bundles I, Bjorn Ian Dundas.
• September 18, 12:15-14:00, Ekvivariant multilinearitet, Morten Brun.
• September 14, 12:15-14:00, Cofibrancy and commutativity I, Christian Schlichtkrull.
• September 11, 12:15-14:00, Cofibrancy and commutativity II, Christian Schlichtkrull.

Spring

• June 26, .
• June 19, .
• June 12, Topology symposium.
• June 5, .
• May 29, .
• May 22, No seminar.
• May 15, No seminar.
• May 10, The Burnside-Witt construction, Morten Brun.
• May 9, Rational K-theory of topological K-theory, Christian Ausoni (Bonn).
• April 24, Andre-Quillen homology and minimal atomic S-algebras, Andy Baker (Glasgow).
• April 17, Additiv kombinatorikk, Øystein Rødseth.
• April 10, No seminar.
• April 3, No seminar.
• March 27, .
• March 20, Nil groups, Holger Reich (Münster/Düsseldorf).
• March 13, Norm kofibrasjonssekvensen, Morten Brun.
• March 6, Høyere Hochschild homologi, Alexander Lundervold.
• February 27, Høyere Hochschild homologi, Alexander Lundervold.
• February 20, Operads and homotopy commutative structures, Christian Schlichtkrull.
• February 13, Operads and homotopy commutative structures, Christian Schlichtkrull.
• February 6, Toda brackets of ring spectra and realizability, Steffen Sagave (Oslo).
• January 30, No seminar.
• January 23, Excision in K-theory, Bjørn Ian Dundas. 

Autumn

• December 19, The solution of the Steenrod problem, Kasper Andersen (Aarhus) (in the algebra seminar: Tuesday 14:15 in room 534).
• December 12, Lefschetz-Nielsen teori og homotopi-fikspunkter, Bjørn Jahren (Oslo) (in the algebra seminar: Tuesday 14:15 in room 534).
• December 6, The topology of point cloud data, Gunnar Carlsson (Stanford), Note time and place: Aud Ï€, 14:30-15:30.
• November 29, Algebra seminar in Auditorium B: Simplisielle komplekser og Calabi-Yau 3-foldigheter, Ingrid Seem.
• November 29, Bousfield localization and equivariant symmetric spectra, Morten Brun (in the algebra seminar: Tuesday 14:15 in room 534).
• November 22, No seminar, see schedule for the Nordic Topology Conference.
• November 15, Eisenstein series, Morten Brun.
• November 8, Low dimensional K-theory classes and two-vector bundles, Christian Ausoni (Bonn).
• November 1, Higher topological cyclic homology, informal discussion.
• October 25, Higher topological cyclic homology, Morten Brun.
• October 24, Counting dimension, Runar Ile (in the algebra seminar: Tuesday 14:15 in room 534).
• October 18, Thom spectra and topological Hochschild homology, Christian Schlichtkrull.
• October 11, Thom spectra and topological Hochschild homology, Christian Schlichtkrull.
• October 10, From Genus to Riemann-Roch II, Trygve Johnsen (in the algebra seminar: Tuesday 14:15 in room 534).
• October 4, From Genus to Riemann-Roch, Trygve Johnsen.
• September 27, Modular curves as Riemann Surfaces, Alexander Vasil'ev.
• September 20, Modular curves and Riemann Surfaces, Alexander Vasil'ev.
• September 13, Exploiting a topological model for quasi-symmetric functions, Birgit Richter (Hamburg).
• September 6, No seminar, DAG in Oslo.
• August 31, Modular curves and moduli spaces, Bjørn Ian Dundas. (extra: Thursday 12:15 room 534).
• August 30, Modular forms and congruence subgroups, Bjørn Ian Dundas.
• August 23, Modular forms, Intro I, Bjørn Ian Dundas. 

³§±è°ù¾±²Ô²µÌý

• June 14, Modules over motivic cohomology, Paul Arne Østvær.
• May 23, 10:15 room 534, G-typical Witt vectors, Morten Brun.
• May 17, No seminar.
• May 10, Endomorfier og karakterisk polynom for projektive moduler over ikke kommutative ringe, Christian Schlichtkrull.
• March 29 - May 3, No seminar.
• March 21, Excision in algebraic K-theory, Harald Kittang.
• March 15, No seminar.
• March 8, Algebraic K-theory: localization and excision, Bjørn Ian Dundas.
• March 1, The connection between algebraic K-theory and Witt vectors, Bjørn Ian Dundas.
• February 22, No seminar.
• February 15, Truncated and p-typical Witt vectors, Morten Brun.
• February 7, Truncated and p-typical Witt vectors, Morten Brun.
• February 1, Dress and Siebeneicher's approach, Christian Schlichtkrull.
• January 25, Introduction to Witt vectors, Morten Brun.