John Horgan keeps moving his blogging activities to different locations, the latest one is here.
For a truly sad and distressing story about what has happened to Billy Cottrell (who was mentioned snarkily by me long ago here), see this LA Weekly article and a Clifford Johnson posting. The abuse of people going on in this country associated with labeling them “terrorists” is just appalling and deeply shameful.
More from Steinn Sigurdsson on Yarn Theory.
Lee Smolin’s book is out in the UK, here’s a review from the Financial Times.
The latest London Mathematical Society newsletter has a review of Not Even Wrong.
David Ben-Zvi was here last week and gave a wonderful colloquium talk on Langlands duality, loop spaces and representations of real groups. Much of was somewhat general philosophy about a new way of thinking about these topics, and this was quite compelling, although I need to find a sizable chunk of time to sit down and really understand what he is doing. If I can do this, maybe I’ll then take a stab at trying to explain this here. He did convince me that one needs to think not only about stacks, but derived stacks. There’s a long foundational document about this by Jacob Lurie (see here), something more readable from Bertrand Toen.
This semester Edward Frenkel is running a seminar on Topics in the geometric Langlands program. The slides of a talk by Ben Webster that are there are wonderful. One problem with this field has always been how unreadable much of the material about is. People like Webster and Ben-Zvi are starting to do a great job of explaining what is going on in a form that others have some chance of following.
I’ll be travelling most of the next week and a half or so, so blogging will be light to non-existent. Behave.