Mathematics – Geometric Topology
Scientific paper
2009-04-18
Mathematics
Geometric Topology
10 pages, 19 figures
Scientific paper
We investigate cobordisms of free knots. Free knots and links are also called
homotopy classes of Gauss words and phrases. We define a new strong invariant
of free knots which allows to detect free knots not cobordant to the trivial
one.
Ilyutko Denis Petrovich
Manturov Vassily Olegovich
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