# Higher Structures in Topology and Geometry V

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## Contents |

## Higher Structures in Topology and Geometry V

May 25-27 2011, Department of Mathematics, University of Hamburg (Germany)

### Support

ESF Research Networking Programme ITGP, CRCG, GK 1492, GK 1670, Center for Mathematical Physics, SFB 676

### Organisers

Christoph Schweigert Giorgio Trentinaglia, Christoph Wockel, Chenchang Zhu

## **Schedule**

### Schedule for Wednesday 25 May

Room: H4 (ground floor) in the Department of Mathematics

09:50 - 10:20 | REGISTRATION | |
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10:20 - 11:20 | Bernardo Uribe | Orbifold string topology and Hochschild cohomology [slides] |

11:30 - 12:30 | Janko Latschev | An application of string topology in symplectic topology |

12:30 - 14:00 | LUNCH BREAK | |

14:00 - 15:00 | Andrew Stacey | How to construct a Dirac operator in infinite dimensions [slides] |

15:10 - 15:55 | André Henriques | Defects between conformal nets |

15:55 - 16:30 | COFFEE BREAK | |

16:30 - 17:15 | Jeffrey Morton | Extended TQFT from Gauge Theory [slides] |

17:25 - 18:10 | Benjamin Balsam | Turaev-Viro theory and Extended TQFTs [slides] |

19:30 - ??? | CONFERENCE DINNER |

### Conference Dinner

The conference dinner will be on Wednesday, 25 May at the resaurant Fischerhaus at the harbour (take the tube to the station "Reeperbahn").

### Schedule for Thursday 26 May

Room: Lecture hall (ground floor) in the Department of Mineralogy, see the walkway between the two locations

09:00 - 09:45 | André Henriques | Defects between conformal nets |
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09:45 - 10:30 | COFFEE BREAK | |

10:30 - 11:15 | André Henriques | Defects between conformal nets |

11:25 - 12:10 | Alex Hoffnung | A groupoid approach to Hecke algebras |

12:10 - 14:00 | LUNCH BREAK | |

14:00 - 14:45 | Alan Carey | Twisted geometric cycles [slides] |

14:45 - 15:30 | COFFEE BREAK | |

15:30 - 16:30 | Ping Xu | String Topology for Stacks (part one) |

16:40 - 17:40 | Liang Kong | Conformal field theories and a new geometry slides |

### Schedule for Friday 27 May

Room: Lecture hall (ground floor) in the Department of Mineralogy

09:00 - 10:00 | Gregory Ginot | String Topology for Stacks (part two) |
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10:10 - 11:10 | Karl-Hermann Neeb | Loop groups with infinite dimensional targets and unitary representations [slides] |

11:10 - 11:50 | COFFEE/LUNCH BREAK | |

11:50 - 12:35 | Chris Schommer-Pries | The Structure of Fusion Categories via Topological Quantum Field Theories [slides] |

12:45 - 13:30 | Alan Carey | Twisted geometric cycles [slides] |

## Registered Participants

- Albert, Hinnerk
- Balsam, Benjamin
- Blohmann, Christian
- Callies, Martin
- Carchedi, David
- Carey, Alan
- Dehling, Malte
- Dumitrescu, Florin
- Fairbairn, Winston
- Garcia-Raboso, Alberto
- Ginot, Gregory
- Henriques, Andre
- Hoffnung, Alex
- Holtkamp, Ralf
- Janssens, Bas
- Khudaverdyan, David
- Kong, Liang
- Lahtinen, Anssi
- Latschev, Janko
- Laures, Gerd
- Lean, Rohan
- Li, Du
- Morton, Jeffrey
- Neeb, Karl-Hermann
- Nikolaus, Thomas
- Pennig, Ulrich
- Richter, Birgit
- Sachse, Christoph
- Schneider, Ansgar
- Schommer-Pries, Chris
- Schweigert, Christoph
- Shaikh, Zain
- Stacey, Andrew
- Stienon, Mathieu
- Trentinaglia, Giorgio
- Upmeier, Markus
- Uribe, Bernardo
- Valentino, Alessandro
- Vasquez, Jose
- Waldorf, Konrad
- Wittkamp, Steffen
- Wockel, Christoph
- Wolfson, Jesse
- Xu, Ping
- Zambon, Marco
- Zhu, Chenchang

## **Registration**

The registration deadline (April 30) has passed by, but you may still register by an informal email to one of the organisers, indicating your date of arrival and departure. We can still help you with finding accomodation, but cannot promise anything.

## Previous Workshops

- June 2-4 June, 2010 CRCG Workshop - Higher Structures in Topology and Geometry IV
- June 4-5, 2009: CRCG Workshop - Higher Structures in Topology and Geometry III
- February 5-6, 2009: CRCG Workshop - Higher Structures in Topology and Geometry II
- November 24, 2008: CRCG Miniworkshop - Higher Structures in Differential Geometry