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SUMMARY:Why Knots Are Really Hard to Untie - Jack Waldron (PhD student of 
 Dr I. Smith)
DTSTART:20070223T160000Z
DTEND:20070223T170000Z
UID:TALK6690@talks.cam.ac.uk
CONTACT:4847
DESCRIPTION:Was Alexander right to cut open the Gordian Knot? Anyone who's
  played with a badly tangled piece of string for long enough will apprecia
 te his solution. In fact\, a lot of computations in Knot theory are provab
 ly NP-hard. I will talk about the diversity of Knot Theory and the quest t
 o understand combinatorial knot invariants in a geometric way and so to ga
 in knowledge that doesn't require difficult
LOCATION:MR5\, Centre for Mathematical Sciences
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