bio  website  chemie.unihamburg.de/ac/AKs/… 

location  Hamburg  
age  54  
visits  member for  4 years, 4 months 
seen  2 days ago  
stats  profile views  1,290 
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, Axxxx is 6dimensional so this should mean my case A is true. Shrug.) 
Dec 2 
accepted  A 6j multiplicity paradox 
Dec 1 
asked  A 6j multiplicity paradox 