Twelfth Linkfest

This past half week, I was in Chicago, first to give a speech at the grad student logic seminar at UIC, and then to attend the Reverse Mathematics Workshop at the University of Chicago. Both events were awesome, I got to meet and hang out with lots of great mathematicians. It was a half a week of constant math discussion. I learned quite a bit.

Meanwhile, the blogosphere continued to churn out tons of great scholarship, some of which I’ve picked to share with you. Hope you enjoy these links.

The previous linkfest was Linkfest 11.

Technical

Terence Tao: The inverse function theorem for everywhere differentiable maps, The Brunn-Minkowski inequality for nilpotent groups

Richard Lipton: Can Quantum Machines Do It All?

John Armstrong: Compatible Orientations, Orientable Atlases, Orientation-Preserving Mappings, Integrals over Manifolds, Integrals and Diffeomorphisms, The tangent space at the boundary, Oriented manifolds with boundary

Timmo Prisk: God and the boulder he can’t lift (or: an amusing reason to insist that worlds in Kripke structures should share a common background language)

Dave Pritchard: Virtual Valuations

JSE: Homology of the Torelli group and negative-dimensional vector spaces

Akhil Mathew: Sudoku and zero-knowledge proofs

Emmanuel Kowalski: What’s special with commutators in the Weyl group of C5?

Hilbertthm90: Deformations of p-divisible groups

Willie Wong: Extensions of (co)vector fields to tangent bundles

Non-Technical

Douglas Rushkoff: Are jobs obsolete?

Mark Lee: “Contagion” and the Rule of Law

John Baez: U.S. Weather Disasters in 2011, Fools Gold (and Platonic Solids), The Malay Archipelago

Gavin Andresen: Defense is a public good. So spend less on it.

Ramaswamy Sudarshan: The modern trend to monetize everything ignores civilizational wisdom

South Bend Seven: Eight Netflix Thoughts

David Brin: Competitive Enterprise or Idolatry of Property, Southern California Goes Dark

Alex Papadimoulis: The Non-Deleting Delete, The Cooling Kludge

William Gasarch: Do we use technology before it’s perfected? Should we?, Conventions in Math: just to make rules work or more?

Sonic Charmer: My Most Unlibertarian Position, My Economic Prescription: Maneuver X

Victor Gijsbers: What is the first secondary world?

Andrew Wegman: Some thoughts on academic cheating inspired by Frey, Wegman, Fischer, Hauser, Stapel

Lance Fortnow: The Anti-Privacy Generation, Imagine (what the future will be like with self-driving cars)

Jason Dyer: Getting math problems wrong for cognitive science reasons

Ross Dawson: The implications of the new broader, flatter distribution of music taste

Samir Khuller: On Conference Locations

John Weitzmann: Extension of Copyright Term for Sound Recordings in the EU

Jeffrey Shallit: Robots as Companions

Peter Hicks: Freeing Train Data

Andrés Caicedo: Alan Turing year

Alexandre Borovik: Vorderman’s Report

George Monbiot: Academic publishers make Murdoch look like a socialist

Remy Porter: Get to the COPPA!, Common Educational Oriented Language

Luke Wolcott: The virtue of verbosity

Tae Kim: Saying more (in Japanese) than “this” and “that”

Pankaj Mishra: The dead end of globalisation looms before our youth

Santo D’Agostino: On the nature of scientific theories

Matthew Belinkie: The Video Game Plot Scale

Suresh Venkat: A way forward on reformatting conferences

Simon Grey: On Patent Reform

Ben Casnocha: Hard-to-define jobs are more secure

Art and Photography

Telefunker: Abandoned Belgian hospital

Default User: Psychotic Architecture

Ken Baker: Hairy circle of spheres

Bradley Garrett: Detroit: Beyond Ruination

Eran Amir: 1,500 Photographs, 500 People, 100 Seconds