Blogs about: Groupoids
Some different ideas of "state", part 2: ensembles, 2-states, and selection sectors
Jeffrey Morton wrote 2 months ago: I just posted the slides for “Groupoidification and 2-Linearization”, the colloquium tal … more →
My Talk at "Categories, Quanta, Concepts"
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Jeffrey Morton wrote 5 months ago: I spent most of last week attending four of the five days of the workshop “Categories, Quanta, … more →
Conference: Smooth Structures in Ottawa
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Jeffrey Morton wrote 6 months ago: I’ve been to two conferences in the past two weeks, and seen a lot of interesting talks. A cou … more →
Moduli Spaces of Connections - Two Recent Talks
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Jeffrey Morton wrote 7 months ago: In the last couple of weeks of the winter term, there were two series of talks here at UWO, by diffe … more →
A Note on Quantum Groupoids
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Jeffrey Morton wrote 8 months ago: I’ve been looking over the last little bit at quantum groupoids, and how they can be used to d … more →
The Cocktail Party Version
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Jeffrey Morton wrote 10 months ago: So for my inaugural blog post of 2009, I thought I would step back and comment about the big picture … more →
Lurie on TFTs
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Chris Schommer-Pries wrote 10 months ago: This morning Jacob Lurie posted a draft of an expository paper on his work (with Mike Hopkins) class … more →
Groupoidfest '08
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Jeffrey Morton wrote 1 year ago: About a week ago (of November 22-23) I was in Riverside, California for Groupoidfest ‘08. (Sli … more →
Octoberfest 08
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Jeffrey Morton wrote 1 year ago: Since coming back from Montreal, I’ve given an exam for a very large linear algebra class, but … more →
Species, QFT, and Groupoidification - Part 2
Jeffrey Morton wrote 1 year ago: Well, I was out of town for a bit, but classes are now underway here at UWO. This term I’m tea … more →
QGQG Nottingham
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Jeffrey Morton wrote 1 year ago: Well, a week ago I got back from England, where I spent a week at the University of Nottingham at th … more →
Two Kinds of Categorification And Other Stuff
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Jeffrey Morton wrote 1 year ago: I’d just like to post something about a conceptual clarification that came up recently. Last w … more →
Comments on Gfest 07 - Groupoids and C*-algebras
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Jeffrey Morton wrote 2 years ago: So I’ve posted some slides from my talk at Groupoidfest. I also gave this talk here at Western … more →
Spans and Vector Spaces - pt 2
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Jeffrey Morton wrote 2 years ago: In the last post, I was describing how you can represent spans of sets using vector spaces and linea … more →
TQFT and Gravity - pt 2
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Jeffrey Morton wrote 2 years ago: So last time I was describing this “matter without matter” idea and claiming that it has … more →
Coming Attractions
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Jeffrey Morton wrote 2 years ago: Due to the rapid-fire the nature of the blogosphere (or, in deference to John Armstrong, the “ … more →
A Bicategory of Groupoids
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Chris Schommer-Pries wrote 2 years ago: I want to talk about an interesting 2-category of topological groupoids that I’ve been thinkin … more →
Turaev on Dijkgraaf-Witten for surfaces
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Noah Snyder wrote 2 years ago: Since Ben slept through the first lecture, I guess it falls to me to describe Turaev’s talk. F … more →
