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June-10-09
11:32 AM
It would be nice to follow Reidemeister-Shrier to get a presentation of the pure braid group from a presentation of the impure one.
The Alexander polynomial is an invariant of w-knots. What replaces the Seifert-surface linking-matrix formula in the case of w-knots?
Can I understand the behaviour of Z^w under surgery that stays in R^3?
What is the global version of the statement that horizontal chord diagrams are divergence-free?
There ought to be a theory of "finite type invariants around a given knot".t