Talk:Invertible knot

Definitions
Another page I created in my user space here. A few things:
 * I couldn't find a good definition of an invertible link.
 * I couldn't find an understandable (for me) definition of a strongly invertible knot. (although I did find a reference that had a definition, but I couldn't understand it well enough to know what exactly it meant, so I just included it in that section.)
 * Fixed. Thank you C S.  J kasd  03:49, 13 May 2008 (UTC)

Don't hesitate to fix any problems you find. Thank you --  J kasd  07:37, 10 May 2008 (UTC)
 * An animation is (hopefully) on the way, a depiction of a trefoil knot becoming inverted.

General method
The statement that no general method is known to tell whether a knot is invertible or not is somewhat ambiguous. The group structure (fundamental group and peripheral subgroups/generators) determine a knot up to ambient isotopy, and the action of reversal on this structure is well-defined. On the other hand this problem in general has no known algorithmic solution. So I guess I see what is meant here, but it is still a bit strange. I have therefore added a remark about it. Mad2Physicist (talk) 00:53, 17 April 2009 (UTC)

External links modified
Hello fellow Wikipedians,

I have just modified one external link on Invertible knot. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added archive https://web.archive.org/web/20131215102511/http://www.math.harvard.edu/~ctm/home/text/class/harvard/101/05/html/home/pdf/first.pdf to http://www.math.harvard.edu/~ctm/home/text/class/harvard/101/05/html/home/pdf/first.pdf

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

Cheers.— InternetArchiveBot  (Report bug) 23:34, 15 November 2017 (UTC)