Oberwolfach Surgery Seminar 2012: General information

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Contents

1 Prerequisites

The prerequisites for the seminar are a solid knowledge of the basics of differential and algebraic topology, meaning: manifolds, Poincaré duality, bundles, cobordism, transversality, generalized homology and cohomology, homotopy groups.

Participants should be familiar with the ideas covered in the first 7 chapters of the book [Ranicki2002]. However material from sections 2.2., 4.2, 5.4, 7.3 will be covered during the seminar. In addition participants should be familiar with the basics of spectra in stable homotopy theory. A good reference here is [Hatcher2002, Section 4.F].

The main references for the material covered in the seminar are [Ranicki1979], [Ranicki1992], [Kühl&Macko&Mole2011] and [Wall1999].

2 Program

2.1 Geometric surgery

  1. Bundle theories DC
  2. Spivak normal fibration DC
  3. Normal invariants and surgery below the middle dimension DC
  4. Immersions, the Wall form and formations DC
  5. L-groups and Wall realisation DC
  6. The geometric surgery exact sequence DC
  7. The TOP surgery exact sequence TM

2.2 Algebraic surgery

  1. Structured chain complexes AR
  2. Symmetric and quadratic signature AR
  3. Algebraic surgery and L-groups via chain complexes AR
  4. Additive categories with chain duality and categories over complexes TM
  5. Generalized homology theories TM
  6. The normal complexes TM

2.3 Algebraic surgery versus geometric surgery

  1. The algebraic surgery exact sequence AR
  2. The topological block bundle obstruction TM
  3. The surgery obstruction TM
  4. The geometric and algebraic surgery exact sequences AR
  5. Examples and related developments DC, TM, AR

2.4 Examples

  1. Examples of non-smoothable Poincaré complexes Martin Olbermann, Steve Balady, Christoph Winges, AR

3 Schedule

3.1 Monday

  • 9.00 - 10.00 Lecture 1 (DC)
  • 10.20 - 11.20 Lecture 2 (DC)
  • 11. 30 - 11.55 Exercise session 1
  • 12.00 - 13.00 Lunch
  • 13.00 - 14.30 Afternoon break
  • 14.30 - 15.30 Lecture 3 (DC)
  • 15.50 - 16.50 Lecture 4 (DC)
  • 17.00 - 18.00 Exercise session 2

3.2 Tuesday

  • 9.00 - 9.30 Special memorial lecture in honour of Hirzebruch (AR)
  • 9.30 - 10.30 Lecture 5 (DC)
  • 10.50 - 12.15 Lecture 6 (DC)
  • 12.15 - 12.30 Photo
  • 12.30 - 13.30 Lunch
  • 13.30 - 15.00 Afternoon break
  • 15.00 - 16.00 Lecture 7 (TM)
  • 16.20 - 17.20 Lecture 8 (AR)
  • 17.30 - 18.15 Exercise session 3

3.3 Wednesday

  • 9.00 - 10.00 Lecture 9 (AR)
  • 10.20 - 11.20 Lecture 10 (AR)
  • 11. 30 - 12.15 Exercise session 4
  • 12.30 - 13.30 Lunch
  • 13.30 - 18.30 Free afternoon
  • 20.00 - 22.00 Lecture 19 - Examples of Poincaré complexes (Martin Olbermann, Steve Balady, Christoph Winges, AR)

3.4 Thursday

  • 9.00 - 10.00 Lecture 11 (TM)
  • 10.20 - 11.20 Lecture 12 (TM)
  • 11.30 - 12.15 Exercise session 5
  • 12.30 - 13.30 Lunch
  • 13.30 - 15.00 Afternoon break
  • 15.00 - 16.00 Lecture 13 (TM)
  • 16.20 - 17.20 Lecture 14 (AR)
  • 17.30 - 18.15 Exercise session 6
  • 20.00 - 20.30 of Browder's retirement lecture, May 2012, Princeton
  • 21.00 - 22.00 Piano concert by Marek Kaluba and Carmen Rovi

3.5 Friday

  • 9.00 - 10.00 Lecture 15 (AR)
  • 10.20 - 11.20 Lecture 16 (TM)
  • 11.30 - 12.15 Exercise session 7
  • 12.30 - 13.30 Lunch
  • 13.30 - 15.00 Afternoon break
  • 15.00 - 16.00 Lecture 17 (TM)
  • 16.20 - 17.35 Lecture 18 (DC, TM, AR)
  • 17.40 - 18.25 Exercise session 8
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