850 reputation
511
bio website chemie.uni-hamburg.de/ac/AKs/…
location Hamburg
age 54
visits member for 4 years, 3 months
seen yesterday
knot theory dilettant!

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
Dec
1
comment The resolution of which conjecture/problem would advance Mathematics the most?
What about specializing to applications? My life wouldn't change if the Riemann hypothesis is proven/disproven, and knowing P=/!=NP also not necessarily would have THAT impact with computers.
Oct
22
comment Classification properties of fusion rings
(contd) Assume you do their construction, but no crossings are allowed in the cubic graph. I think you still can get an invariant, with "Elliott" 6j symbols. If someone could tell me the smallest self-dual, no multiplicity fusion ring that is NOT ribbon, I could try my Clebsch-O-Matic on it and settle the matter. (A try with AA=1,AB=B,B*B=1+A+2B suggests you are right but don't know whether I programmed multiplicity correctly.)
Oct
22
comment Classification properties of fusion rings
@Turion: Thus "style" - I don't know enough on the field.
Oct
21
asked Classification properties of fusion rings
Oct
9
accepted No basis change in a fusion ring allowed?
Oct
8
asked No basis change in a fusion ring allowed?
Jul
14
revised Non-semisimple Lie algebra tensors
Reduced it to the relevant. May go into details with new question.