Timeline for Validity of generalized Reidemeister moves for a virtual knot
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Aug 9, 2012 at 23:45 | comment | added | Scott Carter | @Daniel, I think that the idea of welded knots originated with Roger Fenn and/or Colin Rourke. Welded knots give rise to knotted ribbon tori in 4-space. This idea was found by Silver and Shin Satoh, but it is no surprise given that welded knots are related to the mapping class group of circles in space. | |
| Aug 9, 2012 at 21:46 | vote | accept | muta yasushi | ||
| Aug 9, 2012 at 21:46 | comment | added | muta yasushi | Thanks! ''Moving something across a virtual crossing makes no sense", which made me understand geometrically! | |
| Aug 9, 2012 at 20:04 | history | answered | Daniel Moskovich | CC BY-SA 3.0 |