28 citations · 100 across the 28 of their papers we have counts for
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math.GT2009★ 18 cited
A refinement of the Conway-Gordon theorems
Ryo Nikkuni
In 1983, Conway-Gordon showed that for every spatial complete graph on 6 vertices, the sum of the linking numbers over all of the constituent 2-component links is congruent to 1 mo…
math.GT2009★ 2 cited
On the Wu invariants for immersions of a graph into the plane
Ryo Nikkuni
We give an explicit calculation of the Wu invariants for immersions of a finite graph into the plane and classify all generic immersions of a graph into the plane up to regular hom…