Wintersemester 2021/2022

Wednesdays, 13:15, seminar room 1.315

We will read every week a chapter from [BKKPR] and discuss the content in the Wednesdays slots.

03.11.21 | Smale's proof of the Poincaré conjecture in higher dimensions |
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10.11.21 | Context for the disc embedding theorem [BKKPR, Chapter 1] |
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17.11.21 | Outline of the upcoming proof [BKKPR, Chapter 2] |
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24.11.21 | Intersection numbers and the statement of the disc embedding theorem [BKKPR, Chapter 11] |
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01.12.21 | Gropes, ... [BKKPR, Chapter 12] |
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08.12.21 | ... towers, ... [BKKPR, Chapter 12] |
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15.12.21 | ... and skyscrapers [BKKPR, Chapter 12] |
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05.01.22 | Picture camp [BKKPR, Chapter 13] |
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12.01.22 | Architecture of infinite towers and skyscrapers [BKKPR, Chapter 14] |
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19.01.22 | Basic geometric constructions [BKKPR, Chapter 15] |
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26.01.22 | From immersed discs to capped gropes I [BKKPR, Chapter 16] |
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02.02.22 | no seminar |
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09.02.22 | From immersed discs to capped gropes II [BKKPR, Chapter 16] |

[BKKPR] | S. Behrens, B. Kalmár, M. Kim, M. Powell, and A. Ray,
The disc embedding theorem, Oxford university press, 2021. Via your HU account it is available here.
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[S] | A. Scorpan,
The wild world of 4-manifolds, AMS, 2005. |