Mathematics – Geometric Topology
Scientific paper
2011-12-16
Mathematics
Geometric Topology
32 pages, 14 figures
Scientific paper
We introduce an operation that measures the self intersections of paths on a
surface. As applications, we give a criterion of the realizability of a
generalized Dehn twist, and derive a geometric constraint on the image of the
Johnson homomorphism.
Kawazumi Nariya
Kuno Yusuke
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