### Math Overflow

#### Posted by David Corfield

The math-blogosphere is abuzz with interest in the new Math Overflow, a mathematics questions and answers site. Already we at the Café have been helped with the answer to a query on the Fourier transform of a certain kernel, and there are some juicy questions for us to answer there too, including

- What is the size of the category of finite dimensional $F_q$ vector spaces?, where size is in the sense of the Leinster-Euler characteristic.
- “Wick rotation” of tropical geometry, very much a matrix mechanics kind of question.

You can read a discussion on Math Overflow, and a debate concerning its advantages relative to $n$Lab.

Posted at October 19, 2009 9:01 AM UTC
## Re: Math Overflow

I looked at this because it seemed interesting. I found that the text is a bit too hard, too faint, to read. Maybe this is set by default and my eyes are too old. The solution to making the contrast more readable can be found at nLab.

“This nifty

scriptfixes the eyestrain caused by poorly designed blogcontrasts. 15 seconds to install, works for Firefox only.”