#50. Off-topic

For the interested readers, you can download the mamooth paper of Anton Kapustin and Edward Witten, 231 pages widely known as the Kapustin-Witten paper, from the net.

Electric-magnetic duality and the geometric Langlands program (2006).

That was written in 2006 and, as far as I know, is still unpublished or was never meant to be published traditionally.

You can also download the more recent lectures notes of Kapustin on the same topic, based on a 2007 course. They amount to a mere 38 pages and may be more readable.

Lectures on electric-magnetic duality and the geometric Langlands program


And no, I don't understand a word of what these gentlemen say but I will make my way through it anyway.