Norwegian University of Science and Technology Faculty of Physics, Informatics and Mathematics Department of Mathematical Sciences

An incomplete list of talks at the topology seminar

(Listings for the far future are only meant as a suggestion.
Time and place for these talks may be altered!)

Topology seminar fall 2005

Monday September 12, 10:15-12:00 room 546
Søren Galatius, Stanford: Classifying spaces of cobordism categories

Tuesday September 13, 10:15-12:00 room 546
Søren Galatius, Stanford: Stable homology of automorohism groups of free groups

Thursday September 15, 10:15-12:00 KJL 3
Martin Nilsson,LANL&Chalmers: The Programmable Artificial Cell Evoluton Project

Monday September 19, 10:15-12:00 room 546
Tore Kro: Ortogonale spektra, operader og involusjoner I

Monday September 26, 10:15-12:00 room 546
Tore Kro: Ortogonale spektra, operader og involusjoner II

Monday Oktober 17, 10:15-12:00 room 546
Cathrine Jensen: The monoidal category of linear PDE's

Monday Oktober 24, 10:15-12:00 room 546
Anrew Stacey, Sheffield,: What is a two-vector bundle?I

Tuesday Oktober 25, 10:15-12:00 KJL 22
Anrew Stacey, Sheffield: What is a two-vector bundle?II

Monday Oktober 31, 10:15-12:00 room 546
Marius Thaule: Simplisielle mengder

Thursday Novemberber 3, 10:15-12:00 KJL 22
Kim Frøyshov, Bielefeld: Introduksjon til gauge-teorier og 4-mangfoldigheter I

Friday Novemberber 4, 10:15-12:00 F2
Kim Frøyshov, Bielefeld: Introduksjon til gauge-teorier og 4-mangfoldigheter II

Monday November 7, 10:15-12:00 room 546
Tore Kro: Videregående simplisielle konstruksjoner

Topology seminar spring 2005

Monday April 18, 14:15-16:00 room 1236
Nils A.Baas: Topology of open and closed strings

Monday April 11, 14:15-16:00 room 1236
Asle Sudbø: Topology and new quantum fluids

Monday February 14, 14:15-16:00 room 1236
Finn Knudsen: Symplectic topological measures

Monday February 7, 14:15-16:00 room 1236
Anrew Stacey: Twisted K-theory

Monday January 24, 14:15-16:00 room 1236
Harald Kittang: The K(A,B,I) conjencture

Topology seminar fall 2004

Friday November. 12, 12:15-14:00 room 1236
Bjørn Ian Dundas: Higher topological cyclic homology

Wednesday November 10, 10:15-12:00 room 1236
Anrew Stacey: The Dirac operator on loopspaces (cont.)

Wednesday October 20, 10:15-12:00 room 1236
Anrew Stacey: The Dirac operator on loopspaces

Wednesday October 13, 10:15-12:00 room 1236
Torbjørn Helvik: Local information in cellular automata

Wednesday September 22, 10:15-12:00 Kjel 22
Ralph Cohen: String Topology

Thursday September 16, 10:15-12:00 Kjel 22
Ralph Cohen: String Topology

Wednesday September 15, 10:15-12:00 room 1236
Ralph Cohen: String Topology

Thursday September 9, 10:15-12:00 Kjel 22
Anrew Stacey: Differential topology of loop spaces

Wednesday September 8, 10:15-12:00 room 1236
Anrew Stacey: Differential topology of loop spaces

Thursday September 2, 10:15-12:00 Kjel 22
Ralph Cohen: String Topology

Wednesday September 1, 10:15-12:00 room 1236
Ralph Cohen: String Topology

Monday August 30, 10:15-12:00 B 23
Anrew Stacey: Differential topology of loop spaces

Topology seminar fall 2003

Tuesday December 2, 10:15 - 12:00 room 1329
Dr.Aaron Lauda, Cambridge: Internalization

Monday December 1, 13:15 - 15:00 room 1236
Dr.Aaron Lauda, Cambridge: String Diagrams and 2-Groups

Friday November 28, 13:15 - 15:00 i rom 1236
Dr.Tom Leinster, Cambridge&Glasgow: Higher categorical structures 2: n-categories

Thursday November 27, 12:15 - 14:00 room 546
Dr.Tom Leinster, Cambridge&Glasgow: Higher categorical structures 1: an overview

Monday November 3, 13:15-15:00 room 546
Nils A. Baas: String topology and D-branes

Monday October 27, 13:15-15:00 room 546
Dag Olav Kjellemo: More about Madsen-Weiss

Monday October 20, 13:15-15:00 room 546
Dag Olav Kjellemo: More about Madsen-Weiss

Monday September 29, 13:15-15:00 room 546
Dag Olav Kjellemo: An overview of the Madsen-Weiss proof

Tuesday September 23, 13:15-15:00 room E 404
Dag Olav Kjellemo: Segals space of manifolds

Monday September 15, 13:15-15:00 room TBA 546
Alain Albouy:

Thursday September 4, 13:15-15:00 room F 404
Finn F. Knudsen: Connections on principal bundles and curvature

Monday September 1, 13:15-15:00 room 546
Finn F. Knudsen: Connections on principal bundles and curvature

Topology seminar spring 2003

Wednesday June. 18, 12:15-14:00 room 1236
Bjørn Ian Dundas: K-theory by theorems

Monday April 7, 10:15-12:00 room 1236
Nils A. Baas: Et 2-kategorisk fellesprosjekt.

Monday Mar. 31, 10:15-12:00 room 1236
Idar Hansen: Elliptisk kohomologi.

Monday Mar. 10, 10:15-12:00 room 1236
Bjørn Ian Dundas: The Deligne conjecture on Hochschild cohomology

Monday Feb. 24, 10:15-12:00 room 1236
Eldar Straume: Matrise-geometri II

Monday Feb. 17, 10:15-12:00 room 1236
Eldar Straume: Matrise-geometri

Monday Feb. 10, 10:15-12:00 room 1236
Runar Ile: Deformation theory, mixed complexes up to homotopy, and Eisenbud systems II

Monday Feb. 3, 10:15-12:00 room 1236
Runar Ile: Deformation theory, mixed complexes up to homotopy, and Eisenbud systems

Friday Jan. 31, 10:15-12:00 room KJL 243
Marcel Bökstedt (Aarhus): Entanglement and geometric invariant theory

Topology seminar fall 2002

Wednesday December 4, 13.15-15.00, room 1236
Finn Faye Knudsen: Stacks and gerbes

Wednesday November 20, 13.15-15.00, room 1236
Idar Hansen: Elliptic cohomology

Wednesday November 13, 13.15-15.00, room 1236
Nils A. Baas: 2-K-theory

Wednesday November 6, 13.15-15.00, room 1236
Bjørn Ian Dundas: Hi tech K-theory

Wednesday October 30, 13.15-15.00, room 1236
Bjørn Ian Dundas: Technological K-theory

Wednesday October 23, 13.15-15.00, room H1
Holger Beck-Nielsen: String theory
(Beck-Nielsen will also give a lecture about
The theory of everything Tuesday 15. at 19:00.)

Wednesday October 16, 13.15-15.00, room 1236
Finn Faye Knudsen: Grothendieck-Knudsen determinants

Wednesday October 9, 13.15-15.00, room 1236
Elise Klaveness: 2-vector spaces and 2-categories II

Wednesday October 2, 13.15-15.00, room 1236
Elise Klaveness: 2-vector spaces and 2-categories I

Wednesday September 25, 13.15-15.00, room 1236
Planlegging av høsten og referat fra workshop i cambridge.

Wednesday August 21, 14.15-16, room 1236
Oliver Röndigs: Stable equivariant homotopy theory.

Topology seminar spring 2002

June 3-7. Intensive workshop on Brave New, and Good Old Rings.
Please contact Bjørn for coordinates.

Wednesday May 8, 13.15-15, room 1236
harald Kittang: Highlights from the Chicago conference.

Wednesday April 24, 11.15-12, room F3
Paul Arne Østvær: The homotopy limit problem in algebraic K-theory.

Wednesday April 17, 13.15-15, room 1236
Elise Klaveness: Street's nerves of n-categories.

Friday April 12, 10.15-11:00, room 1236
Søren Galatius: Homology of (ps abstract).

Thursday April 11, 10.15-12:00, room 1236
Søren Galatius: Homology of (ps abstract).

Wednesday April 10, 09.15-10:00 and 13:15-15:00, room 1236
Søren Galatius: Homology of (ps abstract).

Wednesday March 20, 13.15-15, room 1236
Dag Olav Kjellemo: A manifold approach to the real cobordism spectrum.

Wednesday March 6, 13.15-15, room 1236
Dag Olav Kjellemo: A manifold approach to the real cobordism spectrum.

Wednesday February 20, 13.15-15, room 1236
Torbjørn Helvik: Higher order cellular automata.

Wednesday 13, 13.15-15, room 1236
Elise Klaveness: 2-vector spaces.

Wednesday February 6, 13.15-15, room 1236
Elise Klaveness: 2-vector spaces.

Wednesday January 30, 13.15-15, room 1236
Harald Kittang: Report from the Glasgow conference.

Wednesday January 23, 13.15-15, room 1236
Finn Faye Knudsen: Elements of algebraic geometry.

Wednesday January 15, 10.15-12, room 546
Finn Faye Knudsen: Elements of algebraic geometry.

Topology seminar fall 2001

Friday November 30, 12.15-14.00, room 546
Finn Faye Knudsen: Elements of algebraic geometry.

Due to the small size of the topology group this semester, we do not announce official seminars. However, we are to be found in room 1236 on Wednesdays 13.15-15.00, where various themes are covered. Please contact Bjørn Ian Dundas if you are interested in knowing in advance what is going on.

Wednesday September 12, 13.15-15.00, room 546
Dag Olav Kjellemo: Thom isomorfien I.

Wednesday August 29, 13.15-15.00, room 546
Harald Øyen Kittang/Elise Klaveness: Bott periodisitet II.

Wednesday August 22, 13.15-15.00, room 546
Harald Øyen Kittang/Elise Klaveness: Bott periodisitet I.

Topology seminar spring 2001

Wednesday May 23, 14.15 - 16.00, room 546
Andreas Rosenshon: K-theory of curves over number fields.

Monday May 7, 14.15 - 16.00, room 546
Bjørn Ian Dundas: Towards algebra in stable motivic homotopy theory.

Monday April 30, 14.15 - 16.00, room 546
Paul-Arne Østvær: Periodic phenomena in algebraic K-theory of fields.

Friday April 20, 14.15 - 15.15 room F4
Ib Madsen: Diffeomorphisms of surfaces and cobordism.

Thursday April 19, 16.00--18.00, room 1236
Ib Madsen: The deRham-Witt complex for Z(p)-algebras and K-theory.

Monday April 9, 10.15-12.00, room 546
Oliver Roendigs: Algebraic K-theory of spaces and stabilization.

Thursday March 29, 12.15 - 14.00
Ulrike Tillmann: The stable homology of mapping class groups: towards a homotopy theoretic Mumford conjecture.

Wednesday March 28, 10.15 - 12.00
Ulrike Tillmann:The stable homology of mapping class groups: towards a homotopy theoretic Mumford conjecture.

Monday March 26, 14.15 - 16.00
Ulrike Tillmann:The stable homology of mapping class groups: towards a homotopy theoretic Mumford conjecture.

Friday March 23, 08.15 - 10.00
John Rognes:Elliptic cohomology.

Friday March 23, 14.15 - 15.15
Ulrike Tillmann:Moduli space of Riemann surfaces: motivated by and applied to CFT.

Thursday March 22, 10.15 - 12.00
John Rognes:Elliptic cohomology.

Wednesday March 21, 12.15 - 14.00
John Rognes:Elliptic cohomology.

Tuesday March 20, 08.15-10.00
Ulrike Tillmann:The stable homology of mapping class groups: towards a homotopy theoretic Mumford conjecture.

Monday March 19, 14.15 - 16.00
Ulrike Tillmann:The stable homology of mapping class groups: towards a homotopy theoretic Mumford conjecture I.

Monday March 12, 14.15 - 16.00 room F4
Alexei Rudakov: On elliptic curves.

Monday February 19, 14.15-16.00, room F4
John Rognes: Elliptic cohomology I.

Tuesday February 20, 08.15-10.00, room 1236
John Rognes: Elliptic cohomology II.

Wednesday February 21, 08.15-10.00, room 1236
John Rognes: Elliptic cohomology III.

Monday February 12th 14.20-16, room F4
Nils A. Baas: Elliptic cohomology.

Monday, February 5th, 14.15--16.00, room F4
Bjørn Ian Dundas: A good category of motivic spectra.

Monday, January 29th, 14.15--16.00, room F4
Paul-Arne Østvær: The Milnor conjecture.

Let's meet in room 1201 on Monday Jan. 22. 11.15 to plan the semester.

Topology seminar fall 2000

Tuesday, December 12th, 11.15-12.00, room R4
Andreas Rosenschon: Products in motivic cohomology.

Tuesday, December 5th, 11.15-12.00, room 1201
Paul-Arne Østvær: Motivic vs. Étale.

Monday, December 4th, 12.20-14.00, room 656
Dag Olav Kjellemo: Morse theory on the classical groups (cont.).

Monday, November 27, 12.15-14.00, room A 1, 1st floor Blokk A, Lade
Dag Olav Kjellemo: Morse theory on the classical groups.

No seminars scheduled for the week 6-10th october:
Topology symposium in Trondhjem, November 9-10th 2000

Friday, October 27th, 11.15-12.15, room F3
O. Arnfinn Laudal: Ikke-kommutativ geometri.

Monday, October 23rd, 12.20-14.00, room 656
Elise Klaveness: Vector bundles (cont.).

Friday, October 20th, 12.15-14.00, room C395
Bjørn Ian Dundas: Homotopy (co)limits: very briefly.

Monday, October 16th, 12.20-14.00, room 656
Elise Klaveness: Vector bundles.

Monday, October 2nd, 12.20-14.00, room 656
Bjørn Ian Dundas: Oberwolfach and the bordism category.

Monday, September 25th, 12.20-14.00, room 656
Dag-Olav Kjellemo: Bordisms (cont.).

Friday, September 22th, 12.15-14.00, room C395
Paul-Arne Østvær: Étale maps.

Friday, September 15th, 12.15-14.00, room C395
Bjørn Ian Dundas: Spectra, classical and modern.

Monday, September 11th, 12.20-14.00, room 656
Dag-Olav Kjellemo: Bordisms

Friday, September 8st, 12.15-14.00, room C395
Bjørn Ian Dundas: An informal introduction to homotopy theory.

Monday, September 4th, 12.20-14.00, room 656
Paul-Arne Østvær: The algebraic geometry we need to know to do motivic homology

Friday, September 1st, 12.15-14.00, room C395
Harald Øyen Kittang: An informal introduction to Hochschild homology.

Monday, August 28th, 12.20-14.00, room 656
Paul-Arne Østvær: A1-homotopy theory (cont.)

Monday, August 21st, 12.15-14.00, room 656
Paul-Arne Østvær: A1-homotopy theory
(after Morel and Voevodsky: see the final version from Morel's home page or Voevodsky's ICM lecture)

Topology seminar spring 2000

Informal spectral lunch
C395 Friday May 12th 12.15-14.00
Bjørn Ian Dundas: Symmetric spectra.
we discuss the constructions in
Hovey, Mark; Shipley, Brooke; Smith, Jeff. Symmetric spectra.
J. Amer. Math. Soc. 13 (2000), no. 1, 149--208
(see Hopf for a version submitted 3 - 4 - 1998).

Monday April 10th, 10.00-11.45 (NB: STRANGE NEW TIME), room 656
Michael Weiss (Aberdeen): Locally constant homotopy functors which arise in geometric topology

Friday April 7th, 10.15-12.00, room 656.
Henning Mortveit: Sekvensielle dynamiske systemer - bakgrunn og resultater (cont.).

Monday April 3rd, 14.15-16.00, room 656.
Henning Mortveit: Sekvensielle dynamiske systemer - bakgrunn og resultater.

Monday March 27th, 14.15-16.00, room 656.
Bjørn Ian Dundas: Model categories (last lecture).

Monday March 20th, 14.15-16.00, room 656.
Bjørn Ian Dundas: Model categories.

Monday February 28th, 14.15-16.00, room 656.
Bjørn Ian Dundas: The Blakers-Massey theorem and phenomena on the borderline between the stable and unstable worlds.

Friday February 25th, 10.15-11.15, KJEL 1, Gløshaugen.
Sir Michael Atiyah: A hundred years of Mathematics

Friday February 18th, 10.15-12.00 room 656.
Dag Olav Kjellemo: Model categories

Friday February 11th, 12.15-14.00 room 301.
Harald Kittang: Stable homotopy groups of Hochschild homology of commutative algebras

Friday January 14th, 14.15, room 656.
Randy McCarthy (Urbana): Exponential functors


Topology seminar 1999. Incomplete

The schedule for the mini symposium on topology in Trondhjem, November 16th-17th 1999.

Monday Kl.13.15 -15.00. Room 338 SBII, Gløshaugen.
Tom Leinster. On homotopy-algebraic structures
Craig Snydal. On vertex algbras

Wednesday October 20th, 13.15 - 14.15. Room 656 i SII
K. Olaussen: Theory of Branes

Monday October 11th, 13.15- 15.00 i 338 i S2
E. Straume: Likevektskonfigurasjoner for 4-legeme problemet (forts.)

Monday October 4th, 13.15- 15.00 i 338 i S2
Rainer Vogt (Osnabruck): Brave new algebra

Wednesday October 6th (extra seminar). 13.15 - 15.00, i 656 i S2
Rainer Vogt (Osnabruck): N-monoidal categories and iterated loop spaces

Wednesday september 22nd (ekstra seminar). 13.15 - 15.00, i 656 i S2
Bjørn Ian Dundas: Hochschild and Gamma-homology

Monday september 20th, 13.15- 15.00 i 338 i S2
Eldar Straume: Likevektskonfigurasjoner for 4-legeme problemet

Monday September 13th 13-15 in room 338 S2 Gløshaugen:
Bjørn Ian Dundas, Goodwillie Calculus,

Monday September 6th 13-15 in room 338 S2 Gløshaugen:
Planning the semester and Report from the Category Theory 1999 Conference in Coimbra,
Nils A.Baas.

Algebraic K-Theory of non-linear Projective Space, Wednesday 11.00, room 656,
Thomas Huettemann (Bielefeld).

Topologi og Numerikk, Wednesday April 28th, 13.15-15.00. Room 1236,
Brynjulf Owren.

Nerves of n-categories, end, Tuesday April 13th, 14.15--16 in some room,
Bjørn Ian Dundas

Higher categories, Wednesday March 17th, 14.15--16 in room 1236,
Bjørn Ian Dundas

Introduction to algebraic K-theory (first time), Friday February 12th, 14.15--16 in room 395 C,
Bjørn Ian Dundas


Topology seminar 1998. Incomplete

Henning S. Mortveit. "Sekvensielle dynamiske systemer" (cont.)
Time: 14.15-16.00, Wednesday 2nd.
Place: SII 0656.
Idar Hansen: Formelle grupper i homologi
Time: 12.15-14.00, Thursday 26th.
Place: SII 0656.

No Topology Seminar This Week. We are exhausted.

Mini symposium in algebraic K-theory and homotopy theory

Information.

No Topology Seminar This Week. We are busy (see program for the mini symposium instead).

Henning S. Mortveit. "Sekvensielle dynamiske systemer" (cont.)
Time: 12.15-13.45, Thursday 29th.
Place: SII 0656.

Two talks this week:
Henning S. Mortveit. "Sekvensielle dynamiske systemer" (cont.)
14.00, Wednesday 21th.
Place: SII 0656.

Morten Brun. "Filtered rings and topological Hochschild homology"
Time: 13.15, Friday 23rd.
Place: SII 0656.

Henning S. Mortveit. "Sekvensielle dynamiske systemer" (cont.)
Time: 12.00, Thursday 15th.
Place: SII 0656.

"Time: 14.15, Wednesday 23th. Place: SII 0656.
"Categories and cohomology theories". This time I have allowed myself to steal the title from G. Segals influential 1974 paper. We won't be all that ambitious. We'll end our discussion from the last lecture on the classifying spaces for augmented monoids, by considering the nerve in some detail. After that we will move on and study gamma-sets, in order to model abelian structures. If time allows we shall take a brief look at the smash product.

"Augmented monoids and their classifying spaces". Augmented monoids have a map back to the unit (as a part of the data). How does this affect our codification schemes? The answer is that the (augmented) cobar construction which was forced upon us last time, is replaced by the "classifying space" (also known as the "nerve"). As a byproduct, this will allow us to widen our scope a bit from monoids to categories of all shades.

Note new place!! Time: 14.15, Wednesday 16th. Place: SII 0656.
"The simplicial category and the universal monoid". %Custom built for my students, but perhaps of somewhat wider %interest. I will slowly and carefully explain how to encode monoid-like structures, and what it's got to do with spaces


Topology group IMF NTNU


Editor: Kristian Seip    Contact: Bjørn Ian Dundas    Last modified: 2003-03-12 10:44:59 UTC