lieven le bruyn's blog
lazy weekend blogging (1) : after Kronecker’s
“Die ganzen Zahlen hat der liebe Gott gemacht, alles andere ist Menschenwerk.”
blogging, mac| Print article | This entry was posted by lievenlb on April 25, 2009 at 5:51 pm, and is filed under lazy blogging. Follow any responses to this post through RSS 2.0. You can skip to the end and leave a response. Pinging is currently not allowed. |
NeB not among 50 best math blogs
about 3 months ago - 4 comments
Via Tanya Khovanova I learned yesterday of the 50 best math blogs for math-majors list by OnlineDegree.net. Tanya’s blog got in 2nd (congrats!) and most of the blogs I sort of follow made it to the list : the n-category cafe (5), not even wrong (6), Gowers (12), Tao (13), good math bad math (14),
Return to LaTeX
about 6 months ago - 5 comments
To most mathematicians, a good LaTeX-frontend (such as TeXShop for Mac-users) is the crucial tool to get the work done. We use it to draft ideas, write papers and courses, or even to take notes during lectures. However, after six years of blogging, my own LaTeX-routine became rusty. I rarely open a new tex-document, and
Olivier Messiaen & Mathieu 12
about 8 months ago - 5 comments
To mark the end of 2009 and 6 years of blogging, two musical compositions with a mathematical touch to them. I wish you all a better 2010! Remember from last time that we identified Olivier Messiaen as the ‘Monsieur Modulo’ playing the musical organ at the Bourbaki wedding. This was based on the fact that
Seriously now, where was the Bourbaki wedding?
about 9 months ago - 3 comments
A few days before Halloween, Norbert Dufourcq (who died december 17th 1990…), sent me a comment, containing lots of useful information, hinting I did get it wrong about the church of the Bourbali wedding in the previous post. Norbert Dufourcq, an organist and student of Andre Machall, the organist-in-charge at the Saint-Germain-des-Prés church in 1939,
Snow leopard + wordpress + latex problem
about 11 months ago - No comments
Ever since I’ve upgraded to Snow Leopard I’ve been having problems with the webserver. At first there were the ‘obvious’ problems : mysql-connection lost and php-error message. These were swiftly dealt with using the excellent Snow Leopard, Apache, PHP, MySQL and WordPress! advice from ‘tady’. Right now, access to this blog is extremely slow (and
Grothendieck’s functor of points
about 11 months ago - No comments
A comment-thread well worth following while on vacation was Algebraic Geometry without Prime Ideals at the Secret Blogging Seminar. Peter Woit became lyric about it : My nomination for the all-time highest quality discussion ever held in a blog comment section goes to the comments on this posting at Secret Blogging Seminar, where several of
introducing : the n-geometry cafe
about 1 year ago - 3 comments
It all started with this comment on the noncommutative geometry blog by “gabriel” : Even though my understanding of noncommutative geometry is limited, there are some aspects that I am able to follow. I was wondering, since there are so few blogs here, why don’t you guys forge an alliance with neverending books, you blog
bloomsday, again
about 1 year ago - 2 comments
Bloomsday has a tradition of bringing drastic changes to this blog. Two years ago, it signaled a bloomsday-ending to the original neverendingbooks, giving birth (at least for a couple of months) to MoonshineMath. Last year, the bloomsday 2 post was the first of several ‘conceptual’ blog proposals, voicing my conviction that a math-blog can only
math2.0-setup : final comments
about 1 year ago - 1 comment
Last time I promised to come back explaining how to set-up LaTeX-support, figuring I had to tell you about a few modifications I had to make in order to get Latexrender run on my mac… A few google searches made it plain how out of touch I am on these matters (details below). But first,
math2.0-setup : WpMU and BuddyPress
about 1 year ago - No comments
This hour we will install multi-user WordPress and turn it into a social network via BuddyPress
Hi, I'm a professor of mathematics at the University of Antwerp, in Belgium. My research areas are non-commutative algebra and non-commutative geometry. Sometimes, you can also find me here :
about 1 year ago
I’ll probably regret this. I love playing around with very large numbers. In fact I am very good at it. It is true that one can find all sorts of relations which look somewhat coincidental and in fact most of it is coincidental with there being no actual relationship being found 99.999% of the time. It is the realm of crackpots and maybe I am one. A historical exception to this was Mckay’s observation 196883 +1=196884 which turned out to literally be phenomenal. I have mentioned before that the dimensionless large numbers in the 10^40 area, specifically semiclassical physics forms which can be related to the inverse of this large number 10^-39 (which is related to the weakness of gravity to the other gauge forces) are somehow related to large order of the Monster. The specific physics form that is interesting in this matter is: hc/2piGm^2 = 1.6889…10^38 (m= neutron mass). The inverse of this is similar to the Newtonian potential between two neutrons but with the addition of h and c in the potential. This relation is probably a very very large integer although I cannot prove it. But…look at this. (640320^3 +744)^2 *70^2 = 3.37736…10^38 (I spare writing the whole integer here). Kinda of moonshiney looking is it not? If you divide this by 2 you obtain the integer 1.68868…*10^38. (again an integer). As you may know 640320^3 +744 is very nearly Ramanujan’s constant (historically the named constant is a hoax but then it does relate to Ramanujan’s work). Again although I have suspected that hc/2piGm^2 is an integer I cannot prove it. However, let me point out another symmetry relation: hc/2piGm^2 = Mp^2/m^2 (where Mp = Planck mass and m = neutron mass) This makes large order entropy calculations very easy in black hole physics (for me anyway) since a lot of symmetry is involved. Although I know this is crazy stuff the calculation is so close that my feeling on it is that it is possibly true. And I have wasted a lot of time looking at near coincidental math so I have experience(in wasted time). If this physics form is indeed an integer then it is perhaps at the crossroads of physics and mathematics?