897 reputation
512
bio website chemie.uni-hamburg.de/ac/AKs/…
location Hamburg
age 54
visits member for 4 years, 4 months
seen 2 days ago
knot theory dilettant!

2d
asked “Diagonalizing” an associative algebra
Apr
7
awarded  Nice Question
Apr
1
revised “Epicycles” (Ptolemy style) in math theory?
Some extension
Mar
31
comment “Epicycles” (Ptolemy style) in math theory?
@David: A hint I'm German :-) (Some theory within math, singular...)
Mar
31
comment “Epicycles” (Ptolemy style) in math theory?
Upped this one because I can understand it most easily (and, as Todd said, Ptolemy was just an example by me - which I used because "epicycles" nowadays is used figuratively).
Mar
31
accepted “Epicycles” (Ptolemy style) in math theory?
Mar
30
asked “Epicycles” (Ptolemy style) in math theory?
Feb
20
revised Maximum symmetry of generic 6j symbols?
Minor corrections
Feb
19
asked Maximum symmetry of generic 6j symbols?
Jan
29
asked “Prime” fusion rings
Jan
2
comment Connection between Lie algebras and fusion rings
Don't worry, I don't know Jack :-) Could you give an actual example for a fusion rule not associated with a Lie algebra (remember, braided. At least)?
Jan
1
asked Connection between Lie algebras and fusion rings
Dec
26
comment Longevity of “random” conjectures
Joseph - Indeed, a sufficient savvy computer program can generate conjectures faster than any mathematician can prove. (In fact I can do that, and I'm not sufficient savvy :-) Dag Oskar: And while I was writing the question, I thought: "This would be a theme for AMM or the Intelligencer". 1 year? Good grief, where's my memory :-) I'll look the article up. Again. Alexander: While this is a limited area (and possibly not representative - but who knows), have an uppie for your efforts. I was thinking of exactly such a progress report.
Dec
26
accepted Longevity of “random” conjectures
Dec
25
awarded  Yearling
Dec
25
asked Longevity of “random” conjectures
Dec
17
asked “Generators” for fusion rings
Dec
2
comment A 6j multiplicity paradox
Downloaded :-) I hope I can find the hole in my logic now myself, but still would appreciate a direct answer, although I checked the "answered" button. (Note added in reading: Argl, how do associtativity matrices relate to 6j symbols? In any case, Ax|xxx is 6-dimensional so this should mean my case A is true. Shrug.)
Dec
2
accepted A 6j multiplicity paradox
Dec
1
asked A 6j multiplicity paradox