 Jan 7th, 2012: On the Uniqueness of the Homotopy Theory of Higher Categories. Joint Meetings.
 Nov 22nd, 2011: 3Dimensional Dualizability and the Structure of Fusion Categories. Algebraic Geometry Seminar, Yale University.
 Nov 9th, 2011: More Structure of Fusion Categories via Local Topological Field Theories. TQFT Seminar, UC Berkeley.
 Nov 8th, 2011: The Structure of Fusion Categories via Local Topological Field Theories. Topology Seminar, Stanford University.
 Oct 3rd, 2011: On the Uniqueness of the Homotopy Theory of Higher Categories. Topology Seminar, MIT.
 July 12th, 2011: TuraevViro TQFTs via planar algebras. Quantum Field Theory Seminar, MIT.
 June 22nd, 2011: Extensions of 2Groups and a Finite Dimensional String Group. Topology Seminar, RuhrUniversitat, Bochum, Germany.
 June 6th, 2011: The Structure of Fusion Categories via Topological Quantum Field Theories. Topology seminar, University of Copenhagen.
 May 26th, 2011: The Structure of Fusion Categories via Topological Quantum Field Theories. Higher Structures in Topology and Geometry V, University of Hamburg, Germany
 April 27th, 2011: The Structure of Fusion Categories via Topological Quantum Field Theories. Deformation Theory Seminar, University of Pensilvania. Slides.
 April 22nd, 2011: The Structure of Fusion Categories via Topological Quantum Field Theories. Symplectic Geometry, Gauge Theory, and Categorification Seminar, Columbia University.
 April 4th, 2011: The Structure of Fusion Categories via Topological Quantum Field Theories. Colloquium, University of Notre Dame.
 April 2nd, 2011: Dualizability and Locality in 3D Topological Field Theory. Midwest Topology Seminar.
 Feb 7th9th, 2011: TwoDimensional Extended Topological Field Theories (6 hours Minicourse lectures). Workshop and School on Higher Gauge Theory, TQFT and Quantum Gravity. Instituto Superior Técnico, Lisbon.
 Jan 25th, 2011: The space of framed Morse functions is contractible, after S. Galatius. GADGET, UT Austin
 Jan 20th, 2011: Dualizability and Locality in 3D Topological Field Theory. Geometry Seminar UT Austin
 Nov. 8th, 2010: Classifying Extended Topological Field Theories in Low Dimensions. MIT Geometry and Topology Seminar.
 Sept. 27, 2010: Dualizability and Locality in 3D Topological Field Theory. MIT Topology Seminar. Abstract.
May, 4, 2010: 2Groups and 2Group Cohomology. MIT Baby Topology Seminar. Abstract. March 16, 2010: Homological Algebra for Bicategories (with applications to the String Group). Notre Dame.
 March 11, 2010:
Homological Algebra for Bicategories (with applications to the String Group). Classifying Local Topological Field Theories in Low Dimensions. U. Illinois UrbanaChampaign. Mathematical Physics Seminar. Abstract. (Talk switched at the last minute).  Jan 15, 2010: Homological Algebra in Dimension Two (With Applications to the String Group). FRG Conference Berkeley.
 Dec 2, 2009: Classifying Local Topological Field Theories in Low Dimensions. Boston University.
 Nov 18, 2009: Topological Cyclic Homology and Friends. MIT JuviTop Seminar.
 Oct. 20, 2009: Classifying Local Topological Field Theories in Low Dimensions. Northwestern.
 Sept. 14, 2009: Extensions of 2Groups and a Finite Dimensional String Group. MIT Topology Seminar. Abstract.
 Sept, 2009: Classifying Local Topological Field Theories in Low Dimensions. FRG Conference Harvard

 July 21, 2009: A Finite Dimensional String Group and Extensions of Topological 2Groups. Goettingen
 July 14, 2009: Classifying Local Topological Field Theories in Low Dimensions. Algebra, Geometry and Physics Seminar MaxPlanck Institute for Mathematics. Slides.
 June , 2009: DBranes, Defects, and Natural Transformations of Topological Field Theories. Slides. Strings, Fields, and Topoogy Mathematisches Forschungsinstitut
Oberwolfach
 May 6, 2009: DBranes, Defects and Natural Transformations of
Topological Field Theories.
Abstract. UC Berkeley Student Topology Seminar.
 April 29, 2009: Classifying Extened Topological Field Theories in Low
Dimensions.
Abstract. UC Berkeley Student Topology Seminar.
 April 21, 2009: Classifying Extened Topological Field Theories in Low
Dimensions. University of Notre Dame, Topology Seminar.
 Feb 10, 2009: Complete Segal Spaces and (Infinity, n)Categories
after Jacob Lurie, II. Hot Topics Seminar at UC Berkeley
 Feb 3, 2009: Complete Segal Spaces and (Infinity, n)Categories after
Jacob Lurie, I. Hot Topics Seminar at UC Berkeley
 Dec 5, 2008: An Introduction to TQFTs via Planar Algebras.
Abstract.
 Oct 29 , 2008: A Finite Dimensional String Group, Part III.
Abstract.
 Sept 24, 2008: A Finite Dimensional String Group, Part II.
Abstract.
 Sept 17, 2008: A Finite Dimensional String Group, Part I.
Abstract.
 Sept. 3, 2008: Topological Group Cohomology.
Abstract.

June, 2008: Classification of Extended 2D TQFTs. Internal Seminar at the
Hausdorff Research Institute .
 November 7, 2007: Functors for Bicategories. Student Topology Seminar
at UC Berkeley.
 October 30, 2007: Ainfinity Categories and TCFTs. Hot Topics course
at Berkeley.
 October 24, 2007: Bicategories. Student Topology Seminar at UC
Berkeley..
 October 4, 2007: TwoDimensional Topological Quantum Field Theories.
University of Notre Dame, topology seminar.
Abstract
 September 26, 2007: TwoDimensional Topological Quantum Field
Theories. Student Topology Seminar at Berkeley.
Abstract

April 5, 2007: Subfactors and TQFTs.
Arbeitsgemeinschaft: Algebraic Structures in Conformal Field Theory
at the
Mathematisches Forschungsinstitut
Oberwolfach .
Several people asked about my
Slides.
Abstract.
 March 23, 2007: Subfactors and 2+1 TQFTs. Subfactors Seminar at
Berkeley.
Abstract
 Feb 7, 2007: What is an NCategory?
Topology seminar at
Berkeley. Here are my
Slides.
Abstract

Updating...
Ċ Chris SchommerPries, Apr 30, 2011, 6:46 AM
ć Chris SchommerPries, Dec 23, 2009, 6:08 AM
