**Location:** Math 3206**Day:** Wednesday (with occasional talks Friday) **Time:** 3:15pm**Tea:** 2:45pm in 3201**Organizers:** Giovanni Forni, Harry Tamvakis, Konstantina Trivisa

## 2011 - 2012 Colloquium Schedule

## Sept 14 |
Wonderful compactifications of groups as moduli spaces of principal bundles |

## Sept 28 |
An introduction to essential dimension Patrick Brosnan(University of Maryland), |

## Oct 21 |
Rigidity of group actions, cohomology and compactness David Fisher (Indiana University, Bloomington), |

## Oct 28 |
A Filtration of Open/Closed Topological Field Theory Ezra Getzler (Northwestern University), |

## Nov 2 |
Rational billiards and the SL(2,R) action on moduli space Alex Eskin (University of Chicago), |

## Nov 9 |
Why and how do we use wavelets to study turbulence? Marie Farge(Directrice de Recherche CNRS) |

## Nov 16 |
Mixed volume computation and solving polynomial systems Tien-Yien Li (Michigan State University), |

## Dec 2 |
Optimal and Practical Algebraic Solvers for Discretized PDEs - Aziz LectureJinchao Xu (Pennsylvania State University), |

## Dec 7 |
DMS to THRIVE Sastry G. Pantula(National Science Foundation) |

## Feb 8 |
On the rigidity of black holes - Douglis LectureSergiu Klainerman(Princeton University ) |

## Feb 17 |
Product formulas for positive measures and applications - February Fourier TalksPeter Jones(Yale University), |

## Feb 22 |
Semismooth Newton Methods: Theory, Numerics and Applications - Aziz LectureMichael HintermÃ¼ller (Humboldt University, Berlin), |

## Feb 29 |
On the size of the Navier - Stokes singular set Walter Craig (McMaster University), |

## Mar 14 |
De Giorgi methods applied to regularity issues in Fluid Mechanics Alexis Vasseur (UT Austin ) |

## Mar 30 |
Birkhoff Normal Form and a problem of Herman - Dynamics ConferenceHakan Eliasson (University of Paris-6 and IAS), |

## Apr 25 |
Lyapunov Functions: Towards an Aubry-Mather theory for homeomorphisms? Albert Fathi (ENS-Lyon), |

## May 2 |
Contractions of Lie Groups and Representation Theory Nigel Higson (Penn State University), cancelled |

## May 9 |
The Pfaffian-Grassmannian Derived Equivalence Andrei CaldÄƒrÄƒru (University of Wisconsin, Madison), |