User talk:Drorbn

Hello again, Mr. Bar Natan. Thank you for helping me out with my problem. Dr. Conant said that your two examples were similar to his. Anyway, Dr. Conant told me that he became interested in knot theory because you showed up at a presentation he attended. I hope your knot theory career remains a successful one.

Strongbad, 2006-03-14 09:58-05:00

Clarification?

Hi, I just e-mailed you about the "Borromean" bathroom tile, but then realized I could have more easily left a comment here...

Anyway, on the main page, you should probably make it clear that the Rolfsen table is for single-loop knots, while the Thistlewaite table is for multi-loop knots (for people who don't already know that in advance). Thanks. AnonMoos 00:21, 27 Mar 2006 (EST)

P.S., the "Shirt seen in Lisboa" at http://www.math.toronto.edu/~drorbn/Talks/Oporto-0407/KnotsInLisboa.html is actually a partial view of a monochromatic version of the U.S. Bicentennial emblem of 1976. See http://en.wikipedia.org/wiki/Image:Bicentlogo.png

Borromean chain-mail knot?

Which knot number is the "Borromean chain mail" knot? It's not L10a169, but I'm having difficulty determining which it actually is... AnonMoos 15:49, 27 Mar 2006 (EST)

Can't tell without a bit of a search, but I'm running out of time for today... --Drorbn 17:42, 27 Mar 2006 (EST)

Ok, it is L10n107. --Drorbn 21:46, 27 Mar 2006 (EST)

Ok, thanks (of course, I just assumed it was alternating without examining it, sorry). AnonMoos 23:40, 28 Mar 2006 (EST)

Linear decorative knot

Sorry to keep bothering you, but I was looking at the simplest Celtic or pseudo-Celtic linear decorative knot, and it seems to be a real 8-crossing two-loop alternating link (when you shake it, it definitely does not fall apart), but I'm having difficulty relating it to any of the visual depictions on page The Thistlethwaite Link Table L8a1-L8a21... AnonMoos 12:24, 2 Apr 2006 (EDT)

Cool! It is the mirror image of L8a8, and it is not obvious to see that. In fact, I had to run the program KnotTheory` and see that the two have the same (i.e., opposite) invariants.

The Knot Atlas does not distinguish a knot from its mirror, so the picture should go on the L8a8 page. --Drorbn 16:13, 2 Apr 2006 (EDT)

Ok, thanks. It seems that there isn't really currently any program which will take a quasi-arbitrary input diagram and automatically report back "That's link #782 on the list." AnonMoos 22:19, 3 Apr 2006 (EDT)