A group blog on math, physics and philosophy

- CRM (Centre de Recherches Mathématiques, Montreal) Thematic Semester "New Directions in Lie Theory (Sep 10, 2013)
- Much like folks around here, Alistair Savage has been thinking about categorification for some time now and has together with Erhard Neher announced an upcoming opportunity for graduate students and postdocs to take part in a winter school as…
- Higher Algebraic and Geometric Structures: Modern Methods in Representation Theory (Feb 8, 2012)
- Young Researchers Workshop on Higher Algebraic and Geometric Structures: Modern Methods in Representation Theory at the Fields Institute, May 7-9, 2012
- Spans in 2-Categories: A Monoidal Tricategory (Dec 7, 2011)
- A paper constructing a monoidal tricategory of spans.
- Fields Institute Workshop on Category Theoretic Methods in Representation Theory (Aug 18, 2011)
- Workshop on category theoretic methods in representation theory.
- A Tetracategory of Spans (or, What Is a Monoidal Tricategory?) (Mar 30, 2011)
- A paper on monoidal tricategories of spans.
- Categorification and Topological Invariants in Luminy (Jun 29, 2010)
- We’re having a Workgroup on Categorification and Topological Invariants in Luminy.
- New Paper on the Hecke Bicategory (Apr 6, 2010)
- Take a look at a draft of the paper “The Hecke Bicategory”!
- A Question About the Job Application Process (Dec 29, 2009)
- A question on suggested deadlines and the meaning of “full consideration” in the job application process.
- Cobordism and Topological Field Theories Weeks 6 & 7 (Dec 21, 2009)
- Weeks 6 and 7 of the cobordism and TFT seminar give a first look at $n$-dimensional TFT and the accompanying higher category theory!
- Cobordism and Topological Field Theories Week 5 (Dec 7, 2009)
- Week 5 of the cobordism and TFT seminar gives a short history of the interactions of quantum field theories and topology.
- Cobordism and Topological Field Theories Week 4 (Dec 6, 2009)
- Week 4 of the cobordism and TFT seminar introduces $2$-dimensional TFT’s and commutative Frobenius algebras.
- Cobordism and Topological Field Theories Week 3 (Nov 18, 2009)
- Week 3 of the cobordism and TFT seminar introduces symmetric monoidal categories and TFT’s.
- Cobordism and Topological Field Theories Week 2 (Oct 22, 2009)
- Week 2 of the cobordism and TFT seminar introduces oriented manifold and cobordisms in a more formal way.
- Seminar on Cobordism and Topological Field Theories at UCR (Oct 15, 2009)
- Lecture 1 of the Seminar on Cobordism and Topological Field Theories at UCR.
- MSRI Workshops on Knot Homology Theories (Oct 11, 2009)
- Announcement of MSRI workshops on knot homology theories.
- Special Issue on "Categorification in Representation Theory" (Oct 2, 2009)
- Announcement of Special Issue on “Categorification in Representation Theory”
- Ben-Zvi's Lectures on Topological Field Theory III (Sep 1, 2009)
- This is the third set of notes on David Ben-Zvi’s lectures on topological field theory at Northwestern University.

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