1,669 reputation
717
bio website math.tsukuba.ac.jp/~carnahan
location Tsukuba, Japan
age
visits member for 4 years
seen Mar 11 at 8:47

I am a mathematician at the University of Tsukuba.


Dec
8
awarded  Yearling
Mar
10
awarded  Notable Question
Jan
22
awarded  Nice Answer
Dec
8
awarded  Yearling
Nov
23
comment What happened with Hilbert's sixth problem (the axiomatization of physics) after Gödel's work?
This question seems to be based on a misconception about incompleteness and the point of axiomatizing. We seek concise axioms as a way to understand how well a theory can be described when based on a few organizing principles. If you take all observations as axioms, you do not gain understanding. The answer to the title question is: no substantial change.
Apr
19
awarded  Good Answer
Dec
18
answered The “Nerd Sniping” problem. Generalizations?
Dec
8
awarded  Yearling
Oct
22
awarded  Nice Answer
Jun
14
comment Why do people rule out local hidden variables?
I'm just a beginner at these questions, but I was under the impression that Bell's inequality does not rest on magical free will as much as the ability to build a random number generator whose output is sufficiently uncorrelated with the output of your other experimental apparatus. There is enough wiggle room on the correlation here that you really do need an impressive conspiracy. [I see now that Ron Maimon has brought up the same point]
Jun
8
awarded  Caucus
Jun
8
comment Who added $\frac{3}{2} \partial^2 c$ to the virasoro BRST current (and why)?
Thank you! Your answer is very helpful. Do you happen to know where the correction was first worked out?
Jun
8
accepted Who added $\frac{3}{2} \partial^2 c$ to the virasoro BRST current (and why)?
Jun
8
asked Who added $\frac{3}{2} \partial^2 c$ to the virasoro BRST current (and why)?
May
4
awarded  Nice Question
Jan
26
awarded  Popular Question
Jan
6
comment “tmf$(n)$ is the space of supersymmetric conformal field theories of central charge $-n$”
You're unlikely to get a description of conformal field theory from the tmf spectrum. It seems more likely that any interesting functors go the other way, and that elliptic cohomology exhibits some kind of shadow of CFT.
Dec
8
awarded  Yearling
Nov
28
comment Causality and operationalism: from sets and functions to monads
You haven't defined the category of the apparatus. A definition seems to be necessary before looking for a monad structure.
Nov
27
awarded  Good Question