Comments for neverendingbooks

Comment on looking for the moonshine picture by John McKay

John McKay — Mon, 08 Mar 2010 18:45:28 +0000

John Conway’s paper: On understanding \Gamma_0(N)^{+} is generalized to the Q-lattices of Connes – Marcolli – Chapter 3 of their book (go to Connes home page) – and specially Section 3 page 452. Much is ripe for the picking.

Comment on Olivier Messiaen & Mathieu 12 by Thane Plambeck

Thane Plambeck — Mon, 08 Mar 2010 03:33:10 +0000

People might like “Topsy Turvy,” Oskar van van Deventer’s mechanical implementation of Mathieu M12

http://www.youtube.com/watch?v=H8ZcYvU0sLY

Comment on E(8) from moonshine groups by John McKay

John McKay — Sun, 07 Mar 2010 15:01:18 +0000

E8 is found! Exciting developments in Oxford Physics Dept by Radu COLDEA

arxiv.org 1003.0046 by Bert KOSTANT this week - and its references by John Baez (week 289) and by Coldea Science J. 8 Jan 2010.

[The last is best referenced with Oxford Physics Coldea in google.]

This is all remarkable stuff ... the transport of a 'theory' to a 'reality'.

Now to get three copies of E8 and we are well on ghe way to M.

Comment on Return to LaTeX by Isar

Isar — Mon, 15 Feb 2010 08:42:51 +0000

That’s right. However, upon loading the MathJax script one can – to a certain extent – configure its behaviour. It is in particular possible to tell it which delimiters to use for LaTeX code (e.g. dollar signs for inline math, double dollar signs for display math). I just checked in an experimental webpage that it is also possible to tell the MathJax script to use the wp-latex tags (I mean, “dollar-sign-latex” for opening the formula, and “dollar-sign” to close it). So I guess that it is possible to have these python scripts cooperate with MathJax too, without much ado.

(By the way, the main reason why I quite like MathJax, is that it is better at aligning inline math formulas than wp-latex.)

Comment on Return to LaTeX by lieven

lieven — Sun, 14 Feb 2010 19:23:43 +0000

one of the things latex2wp does is to convert the usual latex dollar-signs into wp-latex tags. mathJax doesnt need these extra tags, i think.

Comment on Return to LaTeX by Isar

Isar — Sun, 14 Feb 2010 16:28:13 +0000

Would these scripts also work with MathJax (the much promoted new way to include LaTeX code in html documents) instead of the “usual” wp-latex plugin?

Comment on 44 32′28.29″N, 4 05′08.61″E by Where’s Bourbaki’s Escorial? | neverendingbooks

Where’s Bourbaki’s Escorial? | neverendingbooks — Mon, 08 Feb 2010 14:31:25 +0000

[...] Usually when you know the name of the hamlet, of the village and add just to be certain ‘France’, Google Maps takes you there within metres. So, this was going to be a quick post, for a change… Well, much to my surprise, typing ‘La Massoterie, Chançay, France’ only produced the answer “We could not understand the location La Massoterie, Chançay, France”. [...]

Comment on Lambda-rings for formula-phobics by Qiaochu Yuan

Qiaochu Yuan — Fri, 05 Feb 2010 19:52:27 +0000

Interesting. My understanding was that lambda-rings are a decategorification of the category of representations of a nice group equipped with the exterior power functors. More generally I guess one can consider the exterior power on vector bundles over a space. What’s the relationship between this perspective and the one you give?

Comment on big Witt vectors for everyone (1/2) by James Borger

James Borger — Thu, 04 Feb 2010 10:54:09 +0000

Thanks for the mention! That note of Lenstra’s was actually one of the two key things that led to my serious interest in Witt/lambda things. The other was a conversation with Spencer Bloch about his paper “Crystals and de Rham-Witt connections”.

Comment on Seriously now, where was the Bourbaki wedding? by Harry Gindi

Harry Gindi — Sat, 23 Jan 2010 22:04:57 +0000

This series was so much fun to read.